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June 29, 2020

Top 10 Articles

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One of the founders of the modern brick oven artisan bread movement, Kathleen studied under Alan Scott.

Bakeoven Seminar with Alan Scott

MHA Annual Meeting, Las Vegas, March 1995

Sketchup model of Pisla HTT 602 door

Masonry Stove Builders. Click to download Sketchup model

By Marcus Flynn

45 gal drum insulated pizza oven (facebook album link)

by Michael Womersley

Collaborative for Automated Wood Heat

Slide show with amazing details of crafstmanship 

MHA News article

MHA members catalyze a stove project in Patagonia
by Jon Santiago
Facebook link to story

Mobile oven by Marty Pearson

See also: Testing an Oekosolve Electrostatic Precipitator at the 2018 Stove Design Challenge

Celebration of Life for Tom Trout

Celo, NC. September 22, 2019

Updated on September 8, 2019

Summer palace of Catharine the Great. Pushkin, Russia

Dick Smith

Albie Remembers Heikki

NESCAUM update and recommendations on EPA test methods, Feb 2019

2019 MHA Design Contest Results

Heater by Derek Kowalchuk, Fiddlerock Masonry

Wildacres 2019

Click image for full sized version.

Wildacres 2019 Photo Report

Wildacres 2019 Attendees List

Stove Drawings on Igor Kuznetsov Site

Congratulations to MHA Tech Committee member Jim Schalles!

Preliminary analysis of 185 Masonry Heater Tests

Experiment in real-time PM emissions measurement

Owner built stone facing, HeatKit core. New Brunswick

President's Message

by Chris Prior

Circular White Oven

Wide Awake Bakery, Ithaca NY

See Full Post

Heater Calculator Progress Report - updated Dec 23/18

Zoomable Real Time World Air Quality Map

Custom outside air setup for basement  - Heatkit

Testing the OekoTube Electrostatic Precipitator

2018 Stove Design Challenge on The National Mall in Washington, D.C.

updated on Dec 12

Great article by forester Dave Atkins, who was a judge at the recent Stove Design Challenge.

Top Exit Construction Sequence

By Marcus Flynn

's John Crouch and MHA testing team member Ron Pihl at the 2018 Stove Design Challenge

Photo credit: Kittner for Brookhaven National Lab

Uzumé -  French site with open source stove plans

from Marcus Flynn

photo credit: Jim Schalles
Photo credit: Jim Schalles

Finnish Double Deck Bread Oven

2018 MHA Design Contest Results

Heatkit with rear white oven and wraparound heated bench

Upper Peninsula, Michigan

36 plumbing points, no jacklines

Heatkit relineable firebox after 19 years of heating a low energy house in upstate NY.

5 Run (Swedish) by Marcus Flynn

Consulting: Masonry Stove Builders, Maine Wood Heat

MHA Finalizes Testing Team for 2018 Wood Stove Design Challenge

Rammed Earth Heater

Soapstone Heater and Cookstove

Collaboration between Iron Hammer Stoneworks and Greenstone Heat..

Custom Cooking Fireplace / Grill. Saltspring Island B.C.

Architect: Phillip Van Horn, Consultant: Masonry Stove Builders
Mason: Richard Dakin.  Throat by Superior Clay

Masonry Heater instructional video by MHA members Heavenly Heat, Australia

Thanks to all the techs who are volunteering a week of their valuable time:

Custom heater built by Anna Ledford, Idaho.

Soapstone and lime plaster. Consulting: Masonry Stove Builders
Soapstone supplier:  
Monarch Marble and Granite;  Firebox: Brunner;

Single Skin Heater Code Analysis

prepared for Pat Amos

Pizza on Alaskan Seas

by Dave Misiuk

Mobile Oven by Hearth & TimberMobile Bread Oven by Hearth + Timber

Masonry Heater Chimney Detail for Passiv House

Components: Security Chimney;       Drawing: Chris Weissflog    Research: Marcus Flynn

Did you know that top down burning came to North America via MHA?

How to make cement from wood ash.

Bricklaying in the Netherlands

Thanks to Boris Kukolj for the link

Speed lead system by Boris Kukolj

3層構造 コントラフローヒーター作製

MHA is proud to present its first content in Japanese

Outdoor Fireplace and Bake Oven by MHA member  Dale Demary

Visit with Peter Van den Berg

by Boris Kukolj

Visit with Peter Van den Berg, Part II

by Boris Kukolj

Dynamic Thermal Properties Calculator

Free Download from The Concrete Centre (registration required)
Found on the
Rocket Stove Reference Library page

Teplushka by Marian Ozabal, Slovakia

Submitted by Marcus Flynn. More images of her work.

Testing at the Wood Stove Decathlon

Updated Dec 1/13

Energy In, Energy Out: Getting Off the Fossil Fuel Treadmill

by Ole Hendrickson

Update from Japan

by Aki Yoshimizu

Masonry heaters for Passiv Houses

by MHA tech committe member Zoltan Nagy
Google translate - original Hungarian is here

Wood Stove Decathlon, Washington D.C., November 15 - 19, 2013

National Geographic video on Wood Stove Decathlon

New York Times article on Wood Stove Decathlon

Outside air for slab on grade
Outside Air for Slab on Grade

Repairing cracks in a masonry heater facing

Double Bell heater by Zoltan Nagy

Ortner fresco finish with custom glass work

Precast Oven

Ebay, via Alex Chernov


"multiple, deliberate and purposeful fire setting rather than accidental. Pyromaniacs start fires to induce euphoria..." Wikipedia
(forwarded by Alex Chernov)

Cob Masonry Heater Experiment

via Max Edleson

Soapstone Fabrication Workshop at New Alberene Stone

Thanks to Dave Wilcox for the link suggestion

Wood powered El Camino, Finland

Carbon negative energy source

Uses biomass to create electricity + heat + charcoal.
It is fairly standard gasification and co-generation, except that they have optimized it with microprocessor control and standard field serviceable components available almost anywhere in the world. 
This looks like the real deal - it is the first commercial carbon-negative energy technology. -- ed

Contemporary style heater by Alex Chernov

How clean does a properly operated masonry heater burn?

Great TED Talk by James Hansen

James Hansen is an invited speaker at the Wood Stove Decathlon in DC this November.
Heating with wood is the lowest hanging fruit in reducing your personal carbon footprint.

Building remote radiant panels for a triple skin (Austrian air gap) heater

Updated on October 2/13

Via Facebook

Photo report from Japan

by Brian Klipfel

Great New Book by Richard Miscovich
.  See a preview here

If you order it from Amazon through the MHA Bookstore, you get a 22% discount
and MHA earns 15%.

Good Pizza Oven Discussion

From the Yahoo MHAmembers list

Adding Steam to a Bake Oven

with John Fisher
from the Yahoo MHAmembers list

2012 U.S. Census Shows Wood Heating Continues Growth Streak

from Alliance for Green Heat

"...Nearly 2.5 million households use wood as a primary heating fuel, making it, by far, the dominant residential source of renewable energy in the United States. .."

Nearly 2.5 million households use wood as a primary heating fuel, making it, by far, the dominant residential source of renewable energy in the United States. - See more at:

Nearly 2.5 million households use wood as a primary heating fuel, making it, by far, the dominant residential source of renewable energy in the United States. - See more at:

Guastavino staircase - Baker Hall at Carnegie Mellon University, Pittsburgh PA

From Lars Helbro

Contraflow masonry heater by Marcus Flynn
Heater by Marcus Flynn

Ardennes, Belgium.  200 year old reclaimed bricks from an outbuilding,
reclaimed limestone tiles from the kitchen floor.

HMED Class in Perth ON, September 2013

with John McDougall and Norbert Senf

Clay oven workshop in Ireland

With MHA member Hendrik Lepel.
Via Facebook

World's Quietest Firebrick Blade

IIn the video, when the cut starts, there is  not much extra noise from just the sound of the motor on the Karl Dahm saw, which is also quiet. The sound was recorded by the camera standing right next to the saw. Compare with the Target saw and regular blade, that then starts up about 25 ft away. It is louder than the saw only 2ft away.

Recorded at the recent MHA HMED workshop at John McDougall's shop near Perth Ontario. Full report on the workshop coming soon.

Work Hands Blog

Looks interesting. It mentions masonry heaters

The Social Cost of Carbon

Interagency Working Group on Social Cost of Carbon, United States Government

New wood fired oven book by Richard Miscovich

Click here to order

Infrared thermometer update

by Norbert Senf

5 ft. Toneh oven by Stovemaster
5 ft Toneh oven by Stovemaster

Eva and Ayla visit oven recently built by Firespeaking

Alliance for Green Heat  - Green Heat News, September 2012
Getting Smarter about the Smart Grid

Great analysis of current energy issues - biomass definitely needs to become part of this conversation

States "Notice of Intent" to sue EPA exaggerates complicated issues

by Scott Nichols, Tarm USA

Lehm und Feuer (Cob and Fire)

Free Download

New possibilities for castable refractory

Earth Oven

by Jaanus Viese, Estonia
via Facebook

Phenolic antioxidants in wood smoke

Jennica Kjällstrand and Göran Petersson
Dep't of Chemical Engineering, Chalmers University, Götenberg Sweden, 2002

..."The comprehensive Boise campaign estimated the lifetime lung
cancer risk due to extractable organic matter from particles (Cupitt et al., 1994). 

For the sameamount of extracted material, the risk was found to be about ten times larger for particles from mobile sources than for particles from residential wood burning. The antioxidant effects of the
methoxyphenols in the lungs are likely to explain much of this striking difference. Evidently,
the different impact on health of wood smoke particles compared to particles from other
sources should be considered when emissions from traditional small-scale wood burning are

contraflow heater by Ron Pihl
Flying Contraflow

This 31 year old contraflow heater by Ron Pihl was moved from the owner's old house into his new house.

Alliance for Green Heat

Seven states and five advocacy groups are threatening to sue the Environmental Protection Agency for missing its Clean Air Act deadline to review air quality standards for new residential wood heaters.
The states' notice of intent to sue is available at

masonry heater by Alex Chernov
Single Bell heater by Stovemaster

24"x24" insulated hemispherical black oven, heated bench, heated bed, cook stove

The Pretty Good House

Finding the right balance between construction cost and energy performance

Free Online Permaculture Design Course

With Larry Korn

Wood Stove Design Challenge Partners

The U.S. and Australia have Similar, but Distinct,
Stove Regulation Strategies

Alliance for Green Heat

Click for Larger Version

Heater by Matt Helicke

Via Facebook

Triple skin / contraflow heater in Japan by Norbert Senf and Brian Klipfel
Triple Skin Contraflow Heater in Japan

by Norbert Senf and Brian Klipfel
22" replaceable firebox, white oven and small heated bench.  Two upstairs radiant panels.
To be finished in traditional  Japanese plaster. For MHA member Aki Yoshimizu, who attended Wildacres 2013

Eco-labelled combustion chamber
 --  Technical Board of the Austrian Kachelofen Association

This leaflet is designed to assist in the construction of the Eco-labeled combustion
chamber that is characterized by extremely low emission levels and permit the attainment
of the Austrian Eco Label

Thanks to MHA technical committee member Zoltan Nagy for forwarding

Instructions for building the Austrian Eco-firebox

by Richard Jussel
Also see 2013 MHA Meeting Report for two versions of this firebox

Report from Masonry Heater Seminar "Lithuanian Summer - 2013"

by  И.А. Александров

Explanation of the OMB Review of the NSPS

Thanks to Alliance for Green Heat for putting this together

A Breathing Earth
A Breathing Earth

How your chimney really works

Chimney Safety Institute of America

Building a Brick House

Here's the proper way to do it, in Australia in 1946.
Excellent 10 minute documentary from the National Film Board of Australia

Building with Earth

by Prof. Gernot Minke
A great book. Thanks to Kiko Denzer for finding the free download link.

Its always SunRay in Washington State

New York Times

International Stovebuilding Workshop

Slovenia, July 15 - 20

New Kachelofen by Jessica Steinhäuser

Muskoka, ON
See construction photos on Facebook

Video of leveling clay plaster with a darby

Good demo posted by Michael Henry, Peterborough ON

Kachelofen by Jessica Steinhäuser

Austrian style firebox by Zoltan Nagy

Attorney says manufacturer, retailer share blame for wood boiler pollution

Fairbanks Daily News - Miner

Rath Biocombustion Chamber Plus

Architecture 2030

mobile oven by Stovemaster
48" Mobile Oven for Stratford Chef's School

by  Stovemaster

2013 MHA Design/Build Contest Winners

Australian masonry heater article

by Alan Burdon.
Alan and his wife Fiona Kotvojs run Heavenly Heat in Australia, and were at Wildacres 2013

Hungarian stovebuilding magazine features report on 2013 MHA Meeting

Google translate version on Zoltan Nagy's website.

Support Biomass Energy

Contact your Senators and Representatives and urge them to vote for the Biomass Thermal Utilization Act

Baking bread in Kashmir

Thanks to Richard Miscovich for posting this on Facebook.

Bagel oven build by Alex ChernovBagel Oven build in New Zealand by Alex Chernov

New Zealand inventor breaks into Wood Stove Design Challenge

Rodney Times, NZ

Precast geodesic dome oven
36" Precast geodesic pizza oven at Wildacres 2013

with Marty Pearson

Short Exposures to heavy wood smoke don't have serious health effect - 2 new Danish studies

Russian Rocket workshop in Argentina with John Santiago

Is this Canada's Greenest Home?

Double bell heater with thin stone veneer by Brian Klipfel
Double Bell heater with thinstone veneer by Brian Klipfel

Swiss electrostatic precipitator for small wood systems

Wood Combustion Basics

EPA Seminar by Rick Curkeet, Intertek

EPA Requests Outdoor Boiler Companies to Remove Disputed Efficiency Ratings

Particulate and gaseous emissions from manually and automatically fired small scale combustion systems

Journal of Atmospheric Environment, Feb. 2011

Visit with Marcus Flynn in Montreal

Fluke Thermal Imaging at Wildacres 2013

Combustion Testing at Wildacres 2013

Combustion Analysis Basics

35 pages. Very clear introduction to combustion testing.
Thanks to Boris Kukolj for sending this

Harbison Walker Handbook of Refractory Practice

Contraflow heater by Colin Coveny

Kingston Frontenac stone with calcium oxide mortar

EPA Webinar video available

The May 9, 2013 webinar with Gil Wood of EPA regarding the new NSPS (New Source Performance Standards) is online. It was sponsored by Alliance for Green Heat and Biomass Thermal Energy Council

Wildacres Photo Report

Austrian triple skin heater report.

Photo by Luis Wegscheider

48" Adobe Pizza Oven

by Pat Manley and Marty Pearson

Aki and Aussie putting shrimps on the barbie

Thanks to Dan Givens for the photo.
Aki Yoshimizu is a house builder from Tokyo, Japan.
Fiona Kotvojs is an international development coordinator from Australia, who came with her husband, Alan Burdon. They build masonry heater in Australia
A record 10 countries were represented at Wildacres this year.

North American Single Skin Heater at Wildacres

Fluke Thermal Imaging at Wildacres

Click for larger image with more people
Thanks to Mike Wurzbacker and Adam Buursma for doing the imaging

WA Attendee List for Wildacres 2013

Headline Event for Wildacres 2013:

Wildacres 2013 Event Information

MHA Project at Navaho Reservation, Bluff, Utah

from: Matt Helicke

Construction of a Modern Kachelofen

Thanks to Boris Kukolj for the link

Levain video from Polestar Hearth in Guelph, ON

Bakery Fire

Adobe Bell Heaters in Argentina

New nominee to head EPA stresses need for clean cookstoves

EPA Changes Strategy Again

Will now phase in stricter standards for biomass stoves and boilers

Task Group begins work to include wood heaters in energy audits

Workshop In Slovakia

July 15 - 20, 2013
with Tom Trout, Johannes Riesterer and Vladimir Institoris

Kuznetsov workshop in Lithuania

Heaters by Slovak stove-builder Marian Ozabal

Interesting heaters and cookstoves, built with information from Marcus Flynn's Pyromasse site.

Artisanal Brickmaking in Argentina

by John Alejandro Santiago
Note chimney exit at top of door vault - this a bell type kiln

Pro Outdoor Boiler Bill Defeated in Utah

European car manufacturers manipulating efficiency figures

Exploit loopholes in EU law to achieve 25% to 50% higher results

Two storey heater by Alex Chernov
Two Storey Heater by Alex Chernov

Humor Department:
Outdoor boilers cleaner than wood stoves, boiler lobby tells Utah legislators

Bark up or Down? Firewood Splits Norwegians

New York Times

Fairbanks area chokes on wood stove pollution

Los Angeles Times
Lopis Oven Building Sequence

Thanks to Kiko Denzer for the link to the Orchard Hill Bakery Picasa album

Kachelofen install

with Jessica Steinhauser

Castillian Hypocausts

Thanks to Marcus Flynn for the link.. The design is basically unchanged from Roman times, 2,000 years ago.

Masonry heater by Eric Moshier
Custom Soapstone Heater by Eric Moshier

New SR-13 air frame door by Solid Rock Masonry

MHA at World of Concrete, Las Vegas

Four Simple Steps to Drying Firewood  --  US-EPA
Using a Moisture Meter   -- US-EPA

Still Smoking - Clean Up Your Act

Article by Ron Pihl for "Outside Bozeman" magazine

Popular Mechanics Article on Wood Stove Design Challenge

Brookhaven Lab to Participate in Wood Stove Decathlon in Washington, D.C.

Check out the 14 Wood Stove Design Challenge Finalists

MHA Website Statistics for Jan/13

Page views are up 23% compared to January 2012.
Special thanks to Max Edleson for leading the web site redesign

Masonry heater by Derek Lucchese
Teplushka by Derek Lucchese

Design and working drawings by Alex Chernov
Iron spot magnesite facing bricks

Commercial bread oven by Alex Chernov
Low Rise Commercial Bread Oven

by Alex Chernov

Woodstove Design Challenge at Brookhaven
Wood Stove Design Challenge at Brookhaven National Laboratory

Sketchup Seminar Added to 2013 MHA Meeting

Masonry Heater by Dale Demary
Heater by Dale Demary

NYSERDA Outdoor Boiler Study 
(executive summary)

Outdoor boiler PM emissions were 100 times higher than what you would get with a masonry heater (!)

NYSERDA (New York State Energy Research and Development Authority)
The full 350 page study including all the data is located here

masonry heater by Marcus Flynn
Takka-Bell Combination

by Marcus Flynn

Eight of the 32 Wood Stove Design Challenge entries are masonry heaters

Fairbanks borough can't enforce winter ban on open burning, attorney concludes

Fairbanks Daily Newsminer (forwarded by Dave Misiuk)

Observations 16 Years Later

by Marcus Flynn

guastavino staircase(click for larger verion)
Guastavino staircase

Cathedral of St. John the Divine, NYC

Idle No More: Think Occupy, But With Deep Deep Roots

by Bill McKibben


The Carbon Neutrality of Biomass from Forests

World Bioenergy Association, Sweden

Most Popular Wildacres Pages

Which pages get linked around the web and become popular?

Rocket Bell heater by Peter van den Berg
The MHA Sketchup Page

Marcus Flynn article
Observations 11 Years Later

by Marcus Flynn

Burning Pellets in a Masonry Heater

by Dave Wilcox

Remembering Tom Pugh

"We just lost a friend" - Ron Pihl

Good Russian Stove Building Video

- this got a lot of disussion on the MHA Stove List recently

Fogo Island heater by Alex Chernov
Fogo Island heater by Alex Chernov

Maori ovens hold clues about the Earth

Bell Cookstove by Marcus Flynn
Bell Cookstove by Marcus Flynn

Paul Tiegs memorial
Paul Tiegs Memorial Gathering at OMNI-Test Laboratories

Photo story by Norbert Senf

Heat Kit heater core by Brian Klipfel
Corner Contraflow with White Oven and Heated Bench

HeatKit core by Brian Klipfel. Stone facing by client.

triple bell heater by Boris Kukolj
Triple bell 2 storey heater by Boris Kukolj

Kuznetsov Workshop, Azgrad, Russia, Fall 2012

Masonry heater retrofit with Dave Misiuk
Masonry Heater Retrofit with Dave Misiuk

Cold Climate Housing Research Center

Masons on a Mission

Pat Manley's project has built over 1000 cookstoves in Guatemala.
You can help
by donating money for the materials to build a stove for a family. It costs about $150. Simply contact Pat.

Paul TiegsIn Memoriam - Paul Tiegs

Dates for 2013 MHA Annual Meeting Announced

contraflow heater by Marcus Flynn
Contraflow heater by Marcus Flynn

Happy 80th, Jerry!

Heater Mason Education and Development Program (HMED)

Schedule for 2012

Wildacres 2012

Wildacres 2012 - Photo Report

Click photo for full sized image.

2012 MHA Design Contest Results

Swedish heater by Tom Trout and Glenn Overk
Swedish Heater by Tom Trout and Glenn Overk


Masonry Heater by Max Edleson and Dylan Boye
Custom heater by Max Edleson and Dylan Boye

Modifed portfolio contraflow with heated bench and grey oven

Larkin Refractory Supplies

Basket Insulation Technique for Ovens

by Kiko Denzer

Traditional Spanish Cookstoves

by Marcus Flynn

contraflow heater by marcus flynn
Contraflow Heater by Marcus Flynn

pierres steatites
New Soapstone Heater by Pierres Steatites

Peters Sidste
Remembering Peter Szalai

by Lars Helbro

Wildacres Powerpoint Presentation by John Ackerly,  president of Alliance for Green Heat

How to build a Vibrating table on a budget

Pizza oven by Alex Chernov
Outdoor Community Oven at Evergreen Brickworks, Toronto

by Alex Chernov

Traditional Ovens in Prunet, France

by  Marcus Flynn

Riding a Russian Rocket

by Alex Chernov
Comments by Max Edleson

How to Light a Fire in Your Oven

by Kiko Denzer

Building on a Hot Idea

5-Run Heater w. heated bench, by Max and Eva Edleson

Contraflow heater by Marcus Flynn
Contraflow Heater by Marcus Flynn

Recycled brick

5 run masonry heater by Steve Bushway
5 Run Heater by Steve Bushway

Rear oven, recycled brick

Shineology Heater by Mistislav Izotov

MHA HMED Program
MHA Heater Mason Education and Development Program

With Jerry Frisch.
September 17 - 20. Perth, Ontario.

Kachelofen by Jessica Steinhauser
Kachelofen by Jessica Steinhauser

graphite drawings by Guelph artist Ryan Price

Masory heater doors by Solid Rock Masonry
Masonry Heater Doors by Solid Rock Masonry

Small masonry heater by Max Edleson
Small Experimental Masonry Heater

by Max Edleson

Bake Oven by John Fisher
Bake Oven by John Fisher

Steve Bushway sent in these photos from his recent trip to Sweden.

Masonry heater by Jim Frisch

MHA 2011 Heater Contest Winner

by Jim Frisch, Western Masonry Inc.
Modification of existing fireplace and floor framing,  custom corner bell heater with heated bench.
Click on the link to see the second and third place winners
2011 MHA Bakeoven Contest Winners
2011 MHA Masonry Contest Winner

Heater in Australia

Designed by Alex Chernov

Bake oven by Dale Demary
Outdoor Bake Oven by Dale Demary

Plattsburgh, NY

Cob heater by Max Edleson
Cob Masonry Heater at Cob Cottage Company

Workshop with Flemming Abrahamsson and Max Edleson 

60" pizza oven by Alex Chernov
60" Dome Pizza Oven by Alex Chernov

The Progressive Municipality of Pointe-Claire

by Marcus Flynn
This municipality on Montreal island worked with a local homeowner to allow
construction of a masonry heater in an "EPA certified only" zone.

Masonry heater by Tom Trout
Masonry Heater by Tom Trout

Double bell heater by Boris Kukolj
Double Bell Heater by Boris Kukolj

Recycled clay bricks with clay mortar. Vancouver Island.

2011 Kneading Conference, Skowhegan Maine, July 28-29 

MHA Announces New Education Program
(links to registration form)

Wildacres 2011
Photo Report on 2011 MHA Meeting

2011 Attendee List

Masonry Heater by Dan Givens

U.S. Army Corps of Engineers Facility in North Pole, Alaska

A.P Green Refractory Pocket Catalog

An out of print classic, available in the Members' Lounge

Report from 2011 Pizza Expo, Las Vegas

by Alex Chernov

Russian pancakes
Russian Pancakes

Alex Batsulin 

Update from Hikari Fukuzawa, May 20, 2011

Update from Hikari Fukuzawa, May 10, 2011

Update from Hikari Fukuzawa, April 27/11

Japan Tsunami
Report from Japan

by Hikari Fukazawa

Appeal for Donations - Wood Fired Hot Water for Japan Tsunami Survivors

Hikari Fukazawa is a forester in Northern Japan and a friend of MHA.
Check out his Firewood Life Presentation at our 2004 Meeting

2011 Annual Meeting Information

Heater by Steve Bushway
Corner Contraflow Heater by Steve Bushway and  Zac Johnson

Black oven with summer bypass. Martha's Vineyard
Sketchup course-by-course drawings by Antoine Guerlain

Kachelofen by Kiesling Construction
Kachelofen by Kiesling Construction

Port Mouton, Nova Scotia
See also: New Picture Gallery at Kachelofen School website

Contraflow heater by Marcus Flynn
Heater by Marcus Flynn

Pointe Claire, Montreal.
The client worked with his municipal government to obtain an exemption from a bylaw requiring EPA certified stoves.

Curing Ham with a Masonry Heater

by Marcus Flynn

Details of Plumbing for a Thermosiphon Hot Water System

by Max Edleson

Steve Bushway's Brick Oven

Refractory Brick for Core Construction

by Marcus Flynn

Bypass Dampers

by Marcus Flynn

Man's Earliest Use of Fire

Thanks to Marcus Flynn for the link

Thermograph of Tulikivi Kouta Heater

Submitted by Doug Hren

Corner heater by Max Edleson
Corner Heater by Max and Eva Edleson

A Close Shave

by Marcus Flynn

Masonry Heater Owner will run for Provincial Parliament in Ontario

"A happy masonry heater owner and newly appointed Provincial Energy Critic for the Green Party of Ontario is running for Member of Provincial Parliament." reports Alex Chernov
Campaign site

World of Concrete 2011 attendees
MHA Attendees at 2011 World of Concrete, Las Vegas

Dick Smith writes: The photo is from World of Concrete Expo that MHA just finished. There was genuine interest and a lot of good questions asked by masons.

A great big Thank You to Jerry Frisch, Jim Frisch, Derek Frisch, Pat Frisch, Steve Bushway, John McDougall, Matt Helicke,  and Jeff Owens. 

 Contraflow heater by Colin Coveny

Contraflow Heater by Colin Coveny

Ledgerock facing

Heater by Kiko Denzer
Stovetop Heater

by Kiko Denzer
Kiko is an MHA member and author of "Build Your Own Earth Oven"

Stovemaster is looking for an apprentice

Alex Chernov is looking for a person with good masonry skills located in or willing to move to the North-West Greater Toronto Area. Interested people should contact him by phone  416-708-8139 or email <alex_stovemaster(at)>

Supplementary Under Air

by Marcus Flynn

Quick Fix for Dirty Burning Heater

by Steve Bushway

Action Alert: Biomass Tax Credit to Drop to 10%

- eliminates use of "lower heating value", which will make it difficult to reach 75% efficiency requirement
- "We urge you to contact your member of Congress and ask them to restore the 30% tax credit for high efficiency wood and pellet stoves and boilers. " .. Alliance for Green Heat

bake oven by John Rousseau
Round Ovens

by John Rousseau

Masonry heater by Marcus Flynn
Contraflow heater by Marcus Flynn

Masonry heater by Steve Bushway
Contraflow Heater by Steve Bushway

Quebec apprentices learn to build masonry heaters

by Patrick Berthiaume

Heater by Peep Hommik, Estonia

Water Feed for Wet Saw

by Marcus Flynn

Cookstove by Marcus Flynn
Cookstove Construction Notes

by Marcus Flynn

MHA Masonry Heater Design/Build Contest 2011

MHA Certification Renewal Changes and Updates

Heater by Marcus Flynn
Heater and Cookstove by Marcus Flynn

Faced in white and black medium duty refractory brick.

Energy Project keeps Alaskan School Warm

Fairbanks Daily Newsminer

Couple building Kuznetsov stoves in Sweden wins Innovation Prize

Commercial oven by William Davenport
Commercial Ovens by Turtlerock Masonry Heat

Heater by Raivo Koppell, Estonia

Stucco and Marble, see-through

Can Firewood be Compared with Conventional Fuels?

by John Gulland

Client Feedback

Newest MHA Certified Heater Builder

MHA is pleased to annouce that Chris Springer from Iron Hammer Stoneworks, LLC. has become the newest
certified heater builder.

Chris becomes the 38th person to acquire the certification from the association.

Heater by Alex Chernov
Budget Heater by Alex Chernov

Vancouver Island September 24 - 26, 2010
See slide show of assembly sequence

Soapstone Contraflow
Heatkit Contraflow Heater with Soapstone Veneer

Mason: Pier Boersma, Pillar Masonry, Bellingham WA
Heatkit core, rear white oven.

Heater by Carsten Homstead
Double Bell Heater by Carsten Homstead

Double Bell Heater by Carsten Homstead
Double Bell Heater by Carsten Homstead

Cafe Heater by Raivo Koppel, Estonia

Around the Corner Heater by Raivo Koppel, Estonia

Illustration from  Gernot Minke
Designing Earthquake Resistant Domes

by Prof. Gernot Minke. See page 44

Portfolio Heater in Slovakia

Focaccia col Formaggio
Focaccia col Formaggio

by Alex Chernov

Report from Max Edleson

New System of Fuel Combustion

by Igor Kuznetsov

Developing Nations to Get Clean-Burning Stoves

New York Times, Sep 20, 2010

squirrel tail oven
Mike Wurzbacher and Ira Glick demo squirrel tail oven

The two day fair near Pittsburgh drew over 7000 people

Fireplace retrofit workshop with Alex Chernov
Fireplace Retrofit by  Alex Chernov

Retrofit of an existing outside wall fireplace.
Ajax, ON.

Masonry heaer and boiler
Stacked masonry heater and boiler design

by William Davenport

double bell heater by Alex Chernov

Bell Heater Construction Workshop with Alex Chernov

Vancouver Island, Sept 24 - 26, 2010

chulah stove
Chulha Stove

by Phillips design, Netherlands

Jerry Frisch and Walt Kelly install a Biofire

Danville, PA
Thanks to Ira Glick for the photo.

Masonry heater by Chris Springer
Single Bell heater by Chris Springer

Rear bake oven.
Heater core design by Alex Chernov

Bake oven by Dale Demary
Bake Oven by Dale Demary

Chimney tip from Dale

Bake oven by Dale Demary
Unloading oven shell

MHA officers
MHA Officers meet in Fairbanks

MHA Executive Director Dick Smith was in Alaska, and got together with
Dave Misiuk (MHA Treasurer) and Dan Givens (MHA Vice-President)

Summary of 103 Masonry Heater Tests

Lopez Labs Co-Operative

Mobile oven by William Davenport
Mobile Oven by William Davenport

Oven Detail

Heater by Marcus Flynn
Brick heater and cookstove by Marcus Flynn

Louiseville, Quebec

Brick Oven by John Rousseau
Brick Oven by John Rousseau

Heater with rear black oven

by Raivo Koppel, Estonia
design consulting by Alex Chernov

Pizza-making record broken in Toronto

Video of oven build in Argentina

from Max Edleson

Heater by Ben Sotero

Envirotech heater by Ben Sotero

San Cristobal de Las Casas, Mexico
local stone

New Zealand workshop with Albie Barden
New Zealand workshop with Albie Barden

part 1
part 2

Estonian wood pile
Woodpiles in Estonia

Submitted by Raivo Koppel

Outdoor oven
Outdoor Oven and Fireplace Complex

by David Wilcox

Heater and Commercial Oven

by Antoine Guerlain

Blue Kachelofen by Jessica Steinhauser
A traditional heart(h) for a modernist home

Toronto Globe and Mail, May 27, 2010

woodpile in Finland
Woodstacking method from Finland

Doug Hren writes:
Saw this unique way to stack and ventilate a wood pile on a recent trip to Finland.
(1) Throw it in a contained pile
(2) throw a tarp over the top that slopes away from the center
(3) make a hole in the center of the tarp with a vented roof/chimney structure.

Stack was about 12 feet tall with wooden vent structure.
Woodpile in Albany NY, submitted by Antoine Guerlain

Heater Builder Survey - please download

Please take the MHA Technical Committee's Heater Builder Survey.
The purpose is to find out the types of heaters most commonly built
by MHA heater masons. This information will help in the selection of
heaters for future testing.

Fairbanks, Alaska adopts wood smoke ordinance

thanks to Dave Misiuk for the link
opposition forms quickly

heikki hyytiainen
Heikki Hyytiainen Comes to Wild Acres

by Albie Barden

Energy Expo, Pittsburgh, June 2/10

Ira Glick set up the MHA booth .
Ira's daughter Gabriella is posing with congressmanTim Murphy.

Observations 18 Years Later

by Marcus Flynn

Wildacres 2010
Photo Report on 2010 Wildacres Meeting

Wildacres Pizza Dough Recipe

From Tom Trout

Heater by Marcus Flynn
Heater by Marcus Flynn

Recycled brick

Alpine soapstone stoves
Traditional Soapstone Stoves of the Alps

by Marcus Flynn

Oven by Antoine Guerlain
6'x9' Oven by Antoine Guerlain

William Davenport design, Cincinnati, OH

Glossary of Masonry Heater Terms

by Marcus Flynn
Marcus welcomes input and suggestions on the content

upper chamber
Observations in the Upper Chamber

by Marcus Flynn

How to Make a Pizza Napoletana (video)

Thanks to Alex Chernov for the link

The Spirit of Fire

A poem by Lars Helbro

2010 Wildacres Auction Donor List

The auction raised $23,822. !

lars video
Wildacres 2010 Video

by Lars Helbro

oven by john fisher
Large Oven by John Fisher

Stallarholmen, Sweden

Heater by Marcus Flynn
Heater by Marcus Flynn

Bromont, Quebec

French book
New Heater book published in French

Features work by several MHA members
Thanks to Alex Chernov for the link

heater by Max Edleson
Heater in Argentina

by Max Edleson

Double Bell Heater Worshop with Alex Chernov

May 10 - 14, Flesherton, Ontario

Registration for Wildacres 2010 is full

A waiting list has been started

For Sale: Testo 330-1LL Combustion Analyzer

Heater by Dave Misiuk
Bell Heater with Pizza Oven by Dave Misiuk

Oven has 5.8 sq. ft. hearth area
Fairbanks, Alaska

Outdoor fireplace by Colin Coveny
Outdoor Rumford by Colin Coveny

Oven by Anna Gebhardt
Backyard Earth Oven by Anna Gebhardt

Masonry Heater Building Classes with Eric Moshier

North House Folk School, Grand Marais, Minnesota
July 22 - 25, 2010
August 12 - 15, 2010

Heater by Steve Bushway
Heater by Steve Bushway

Double Bell heater by Stovemaster
Double Bell Heater by Stovemaster

Black oven, heated bench, top vented.
Alex Chernov, Sergei Kuznetsov, with Brian Klipfel.

Lopez Labs Conference 2010
Lopez Labs Conference - January 4 - 7, 2010

(above)animation of burn sequence from a 2X oversize fuel crib of dry softwood
page updated on Jan 21/09

Do soot emissions mean that wood heat causes global warming?

John Gulland

Wood Heating and Energy Literacy

John Gulland

Masonry heater by Marcus Flynn
Contraflow Heater with white oven by Marcus Flynn

Contraflow heater
Contraflow heater with stucco and mosaic tile finish

Halifax, Nova Scotia. Mosaic design by Kath Rutherford
click for alternate image

John Gulland to present at HPBA Expo 2010

Green Heat News
Check out the masonry heater article

Cookstove by Raivo Koppel
Cookstove by Raivo Koppel

This is a typical Estonian cookstove, with a heated wall behind

Air Emissions from Residential Heating: The Wood Heating Option Put into Environmental Perspective

Jim Houck, Paul Tiegs, et. al.

Heater by Carsten Homstead
Double Bell Heater by Carsten Homstead

Oven by Stovemaster
High Mass Commercial Oven

Built by Alex Chernov and Sergei Kuznetsov of Stovemaster

Bread by Henry Ruczynski
Decorative Bread by Henry Ruczynski, Vancouver

Heater by Raivo Koppel
Heater by Raivo Koppel

Baker oven
The Oven of Phillip Baker

Marcus Flynn documents this indirectly fired oven, in the Eastern Townships of Quebec

Determination of Heat Losses and Efficiency of Masonry Heaters, using
an Anemometer and a Thermocouple

by Alex Batsulin, stovemaster (translated from the Russian original)

Kachelofen by Tom Trout
Contraflow Kachelofen by Tom Trout

Roywood Refractory Core

Thanks to Marcus Flynn for the link

Alex English

Black Soot Might Be Main Culprit of Melting Himalayas

Masons on a Mission
Devising the stove that could save the world

The New Yorker
Support Masons on a Mission

Report touts woodsmoke solutions for Fairbanks

Fairbanks Daily News Miner, Dec 17/09

Draft proposal

Fairbanks Area Wood Smoke Local Action Coalition

oven by Pat Manley
Bake Oven and Grill by Pat Manley

Salt Water Farm cooking school, Maine

kuznetsov boiler
Kuznetsov Boiler built in Ohio from Lopez Labs photo story

by Tom Stacy

EPA Regulations / NSPS

by Paul Tiegs and Jim Houck, OMNI-Test Laboratories
Hearth & Home Magazine, December 2009

Industry Comments on NSPS

Hearth & Home Magazine, December 2009

Double bell heater by Eric Moshier
Double Bell Heater by Eric Moshier

Brick and reclaimed sandstone

Masory heater by Evan Moore
Brick Contraflow Heater by new MHA member Evan Moore

MHA Draft Technical Standards for Emissions Testing

US EPA Office of Air Quality Planning and Standards

Video Broadcast Archives:

PM 2.5 non-attainment picture in the next 5-10 years

The Oven at Doucy

by Marcus Flynn

Rocket Stove

Latest Rocket/Bell Results from Peter van den Berg

see also: 2009 Lopez rocket experiments

Book Report: "Blessed Unrest" by Paul Hawken

New York Times, Dec 6/09
(your editor rates it 10/10)

curved facing
Layout for curved shiner facing

Large off grid straw bale eco-cottage, Kazabazua, Quebec

Heater by William Davenport
Heater by William Davenport

Reclaimed brick shiner facing
"Quickest facing ever" -- WD

Dr Zeus

Top 5 MHA Page Views, November 2009:

1.)..........9543 -------MHA Home Page
2.)..........4887 -------MHA News
3.)..........4448 -------MHA Gallery Page
4.)..........2599 -------MHA Members Page
5.)..........2438 -------MHA Brick Oven Page

Total Page Views for November: - - - 96,929
Total Page Views for 2009 to date: - - - 705,620

Top 5 MHA Page Views, October 2009:

1.)..........9457 -------MHA Home Page
2.)..........5008 -------MHA News
3.)..........3994 -------MHA Gallery Page
4.)..........2407 -------MHA Members Page
5.)..........2164 -------MHA Brick Oven Page

Total Page Views for October::  - - 88,366
Total Page Views for 2009 to date: - - - 608,691 

Outdoor fireplace by Colin Coveny
Outdoor See-Through Rumford Fireplace

by MHA member Colin Coveny
Nepean Sandstone, Ottawa ON

Friend of the Earth attacks carbon trading

The Guardian, Nov 5/09

Heater by Dan PikeHeater by Dan Pike
Heater by MHA member Dan Pike

Local limestone, rough face and polished face.
Remote chimney - 6ft from heater.
Plattsburgh, NY

Certificate programs

Heater by Raivo&Kerri Koppel, Estonia

Heater with Cooktop

Raivo&Kerri Koppel, Estonia

MHA 2010 Heater Design/Build Contest (pdf)

Word version

The New (Green) Arms Race

Robert F. Kennedy, Jr.

Building a Swedish stove
Building a Swedish stove

A Listing and Review of some Anti-Wood Heating Web Sites

"Here are brief profiles of some of the activist web sites that call for bans on wood burning. The objective here is not to harass them, but to learn from their tactics and assess the quality of their arguments."

From The Woodpile, edited by John Gulland

Wood Burning in the Media, Nov. 17, 2009

A compilation of news and commentary gathered from maintstream media.

From The Woodpile, edited by John Gulland


Hoffman kilns
Hoffman Kilns

Thanks to Hans Nicolaisen for the link


The low energy frontier in housing

Fairbanks Designated a Non-Attainment area by EPA

Fairbanks Daily Newsminer, Nov 14/09

Masonry Heaters Qualify for Canadian ecoENERGY Retrofit Grant

How to Market Your Business with Facebook

New York Times, Nov 11/09

Masonry heater course
Masonry Heater Building Course

with Eric Moshier

  • Feb. 25 -- March 1, 2010
  • North House Folk School
  • Grand Marais, Minnesota

EPA will consider regulating masonry heaters and pizza ovens

Draft NSPS Review Document

Available in the MHA Members Lounge
Note: For comment only, not for distribution

Marcus Flynn
Travels in Russia

Marcus Flynn explores the masonry heaters on an abandoned collective farm

Mortar, its function and influence on masonry properties

Stone For Buildings and Civil Engineering, The British Geologic Society, 1999


by Steve Bushway

Forno Bravo
Forno Bravo Expo 2010

Monterey Peninsula, CA  Feb 20-21

Testo 308
Evaluating a Testo 308 Digital Smoke Spot Meter

Lopez Labs
updated on Nov 4/09

Bell testing workshop
Bell Heater Construction and Combustion Testing - updated Nov 1/09

The workshop raised $2540.00 for MHA
Oct 28/09: Feedback from Chris Springer
Nov 1/09: Updated with preliminary test results

Outdoor fireplace by Colin Coveny
Outdoor Bake Oven and Rumford Fireplace by MHA Member Colin Coveny

Ontario (Owen Sound) limestone.

MHA Publishes Draft Technical Standards

June 6/09
MHA announces publication of a suite of technical standards, in an effort towards establishing a voluntary
compliance program to allow EPA certification of masonry heaters and bake ovens.

These standards are currently in draft form, and are open for public comment.
Technical comments should be addressed to MHA Technical Committee Chair, Norbert Senf:   mheat(at)

Outdoor cooking complex by Alex Chernov
Outdoor Cooking Complex by Alex Chernov

Unilock pavers set in thinset

Heater by Dan Givens and Dave Misiuk
Heat-Kit Corner Unit by Dan Givens and Lee Kenaston

Fairbanks, Alaska
Seismic engineering by Dave Misiuk

Workshop in Hungary with Alex ChernovWorkshop in Ete Hungary with Alex Chernov
Workshop in Ete, Hungary

with Alex Chernov
July 4 - 11, 2009

Heater by Sergey Nesov
Heater/Fireplace Combo by Sergey Nesov

Sergey is the president of the Moscow Stove Builders Guild
Thanks to Marcus Flynn for forwarding the photo

Locktop Damper Discussion

with Erik Nilsen
from the Yahoo Masonry Heater List

Historic Restoration Work

Thanks to Joel Dick for the great link

quarrying stone
Quarrying Stone -- Oct/09

William Davenport sent this fall photo from his current job.
The stone is being quarried 50 ft. from the heater.

Photo from William Davenport
Cutting Stone, Pennsylvania, 1938

MHA Member William Davenport's great grandfather is in the background.
Finished product at the Davenport hunt camp.

double bell in sweden
Double Bell heater in Sweden (Kuznetsov style)

built by Ekonomka
Thanks to Martin Johnsson for the photo


Thanks to Marcus Flynn for the photo from his recent trip to Russia

van den Berg
New Rocket/Bell Stove

from Peter van den Berg, Netherlands

squirrel tail ovens
Squirrel Tail Ovens

by John Fisher

Institutional cook stove
Institutional Cook Stove

For use in Afghanistan
Consulting services sourced through: MHA Directory
Consulting by: Norbert Senf

The Traditional French Potager

by Marcus Flynn

"The potager takes its name from the word 'potage', soup, which was made on most days in homes throughout France. Until the last war, many households in France cooked upon an open fire and baked in a wood fired oven..."

Simplified Kachelofen Calculator

Excel spreadsheet. Corrected on Oct 17/09
Thanks to Martin Johnsson from Sweden for the error checking.

Heater testing
Heater Testing - Course Outline

Updated October 14/09

Heater by James Schonauer

Heater finish by Antoine Guerlain
Heater Finish by Antoine Guerlain

Core build by Steve Bushway and Antoine Guerlain
Strawbale house, Chatam, NY, Laura Lee Intscher, architect

I.S. Podgoridnikov (1886 - 1958)

Inventor of the Teplushka, and Double Bell masonry heater

Modern Stoves for All
Modern Stoves For All

Waclaw Micuta, 1985. 97 pages
Practical survey of low-cost stoves worldwide - a classic
Excellent introduction to the basics of wood combustion and to cookstoves.

"Any third-rate engineer can make a machine or a process more complex; afterwards, it takes a first-rate engineer to make it simple again."
E.F. Schumacher, author of Small is Beautiful, and a founder of ITDG/Practical Action

rocket oven
Commercial White Rocket Oven


Report on Wood Stove Testing at CCHRC in Alaska

by Dave Misiuk, PE

Chimney Connection #8
Chimney Connection #8

by Marcus Flynn

Mastercraft firebox
Burn Video from Stan Homola, Mastercraft Masonry

Grate and sloped floor similar to Alex Chernov's design
Secondary air system in firebox walls
New Pisla 601 door, with air frame

Medieval stove tiles in France
Medieval Stove Tiles Discovered in France

by Marcus Flynn

bake oven - estonia
Fireplace/Bake Oven by Raivo & Kerri Koppel

Based on a design by Alex Chernov

oven detailKoppel - Estonia
detail, see link above

rocket stove
The Fixed Institutional Rocket Stove


Country Report 86
Heater Video from 1986

with Norbert Senf
CBC Television - Country Report with Wayne Rostad

lime DVD
Lime Mortars DVD Review

The Last Straw, Sept 23/09

Earth plasters
Earth Plastering Guidelines for Finishes

Gernot Minke - University of Kassel, Germany

Marcus on Russian TV
Marcus Flynn and Alex Batsulin on Russian TV

slow motion fire
Slow motion fire video

by Doug Hren

Bread Ovens of Quebec
The Bread Ovens of Quebec

National Museum of Man, 1979, Ottawa.
This book started the modern brick oven bread scene in North America
Free Download
Download as a single file (33 Mb)

Dick's first oven
Dick and I just finished this oven by his house today. The land across the lake is Ontario.
He was a good hod carrier...............Eric Moshier

Bake oven by Marty Pearson
Bake Oven by Marty Pearson

2009 MHA Bake Oven Contest winner.

bell heater
MHA Workshop:
Bell Heater Construction and Combustion Testing

with Alex Chernov and Norbert Senf
Caledon, Ontario  --  October 23 - 25, 2009
Sept 22/09: Note: Workshop is fully booked with 12 attendees

precut heater install seminar
How to: Organizing a core install

by Norbert Senf
Updated on September 30/09

Top  5 MHA Wildacres Page Views, August 2009:

1.)........2216 -------2006 Backyard Bake Oven with Peter Moore
2.)..........826 -------2004 Cob Oven with Tom Trout
3.)..........824 -------2007 Experimental Oven with Alex Chernov
4.)..........742 -------2005 Small Commercial Pizza Oven with Pat Manley
5.)..........628 -------2003 French Bake Oven with Norbert Senf

Total Page Views for August::  - -  46,898
Total Page Views for 2009 to date: - - -  449,012 

Forno Bravo Primavera Oven Reviews

Peter Reinhart
LA Daily News
Norbert Senf

A Cheap Fix for Climate: Retrofitting

New York Times, Sept 13/09

Energy retrofit
Deep Energy Retrofit -- Residential Renovation of a Schoolhouse

Build it Solar

Stove Builders
Stove Builders at the Moscow Day Celebration

Left to Right.

Valeryi Pishulin, stove builder
Sergey Nesov, President of Moscow Stove Builders Association
Marcus Flynn, stove builder (Montreal)
Vladimir Kochurin, Director of the Lipetsk Stove Building School.
Vladimir Liakhov, sauna specialist

Steve Bushway
Artisans:  Some Like it Hot

Berkshire Living

Japanese Plaster
Japanese Plaster

by William Davenport

Masonry heater by Marcus Flynn
Handbuilt contraflow heater by Marcus Flynn

Contraflow heater by Jean-Luc Rosolenet
Masonry Heater Progress in France

Check out the blog

lars helbro visits austria
Austrian Kachelöfen

Danish masonry heater builder Lars Helbro visits colleagues near Vienna

Forno Bravo oven by Steve Bushway
Forno Bravo Oven by Steve Bushway

Heater by Kerri Koppel
Heater by Kerri Koppel, Estonia

" Thanks to MHA News, we have attracted a
great interest in Estonia. And we have a great deal of
work!" ... RK

Heater by Raivo Koppel
Recent heater by Raivo Koppell, Estonia

"probably you can see the MHA influence..." RK
note corner detail on the tile, suggesting 4" stone. -- ed.

Stone Turtle Cooking School

Sept - Dec 2009 Schedule

Zero carbon house
Zero Carbon House in UK

Uses a brick Catalan vault as the main structure

timbrel vaults in Cuba
Tiles as a substitute for steel: the art of the timbrel vault

Timbrel vaulting at Cuba's art schools
Time lapse movie of a vault being constructed at MIT

Guastavino vault in the UK
First Guastavino Vault Rises in UK

Heater Workshop with Tom Trout

October 5 - 8, 2009
, North Carolina

Big heater core by William Davenport
Large heater core by William Davenport

Contraflow plus updraft channels to the side and across the top

rocket bell experiments
Rocket - Bell Experiments

Last test of this series.  Interesting.
Independent results from Peter van den Berg, Netherlands,, updated on July 27/09
Aug 15/09 update: See also: John Fisher's rocket comments from 2007

Discussion on Foundation Clearances

CCHRC fireplace retrofit
Alaska Fireplace Retrofit Project

Update from Dave Misiuk, July 9/09
preliminary particulate and efficiency results are in.
Design qualifies for I.R.S. 75% efficiency definition

Masonry heater by Dale and Andre Demary
Heater by Dale and Andre Demary

Jay, NY

The Canelo Chronicles
The Canelo Chronicles

Bill and Athena Steen's blog is well worth a visit for fans of clay.
They authored the original Strawbale House Book.
and have extensive experience with clay and lime plasters and art.
They recently completed a European tour with workshops in
Denmark, England, Estonia, Slovakia and France.

firebox rebuild
Firebox rebuild

by Norbert Senf

semi pre-cast ovens
Semi Pre-Cast Ovens

by Alex Chernov

Heater by Martin Palmer
Contraflow heater by Martin Palmer

St. John's, Newfoundland. Reclaimed bricks

Bake oven by William Davenport
Bake oven vaulting crew

6'x9' commercial bake oven by William Davenport, for Elmore Mountain Bread, Vermont
left to right: Carsten Homstead, Antoine Guerlain, William Davenport, Ksenia Chumakova
Photo credit: William Davenport

Contraflow masonryheater by Dan Pike
Granite Heater by MHA member Dan Pike

Heat-Kit core. Brick backing wrapped with EIFS mesh embedded in thinset.
Brazilian Red Dragon granite fastened with GE Type I clear silicone.

Kachelofen by Jessica Steinhauser
2009 Artprize Entry

Jessica is a friend of MHA

Heater by Alex Chernov
Stacked Heaters by Alex Chernov  - - 60,000 BTU/hr total output

Heater by Dale Demary
Heater by Dale & Andre Demary, Saranac Lake, NY

Thermal Mass core
Brick, granite and slate
"Gimme Shelter" Sunburst

Experimental Masonry Hydronic Heating Workshop

with Alex Chernov
updated on June 21/09

Masons on a Mission
This Mason on a Mission in Guatemala

Portland Herald, May 20, 2009

IRS Guidance on Tax Credit for Purchase of Biomass Stoves

forwarded by Tom Stroud, June 3, 2009

5 run soapstone hybrid
Design Revisions

Five run soapstone hybrid, Wildacres 2009

Heater by Antoine Guerlain
Contraflow Heater with White Oven by Antoine Guerlain

American Clay plaster finish
MHA Plans Portfolio heater (modified)

Heater by Joel Dick
Heater by MHA member Joel Dick

DAC International pre-engineered super low energy house. First fire.

Wildacres 2009
high resolution version

Wildacres 2009

A Huge Success.

The auction raised $23,464.00 - - - a new record.
Donor list
- - - - Particular thanks to Tulikivi for the top donation, which raised $6,000.00

Oven by John Fisher
Commercial Oven by John Fisher


Heaters in Siberia
Heaters in South Siberia

by Alexander Batsulin
A deserted railway settlement, located in Asia.

Jean Claude Raybaud
In Memory of Jean Claude Raybaud

by Igor Kuznetsov

Heater by William Davenport
Contraflow with Three Bells

by William Davenport

Kachelofen by Tom Trout
Contraflow Kachelofen

by Tom Trout

double bell core
Double Bell Heater Core - 11 ft. tall

by Carsten Homstead
Heated bench and bake oven on opposite side.
Design based on Igor Kuznetsov's system

Double bell heater by William Davenport
Double Bell Heater/Fireplace combo

by William Davenport and Antoine Guerlain
The fireplace is vented through the heater upper bell
Design consulting by Alex Chernov and Igor Kuznetsov

Double Bell heater by William Davenport

Cookstove by Marcus Flynn
Cookstove Construction Sequence

by Marcus Flynn

Alan ScottAlan Scott, 72, Artisan of the Brick Oven, Dies

New York Times, Feb 6/09

Masonry heater by John Fisher
Heater design proposal by MHA Member John Fisher, Sweden

Cob plaster with soapstone trim

Masonry heater by John Fisher
Section Drawing by John Fisher

Top Down Fever

by John Gulland

Bagel Oven by Alex Chernov
Montreal Style Bagel Oven by MHA Member Alex Chernov

Toronto, December 2008

Heater by Carsten Homstead
Double Bell Heater by MHA Member Carsten Homstead

Design based on Igor Kuznetsov's system

Heater by Martin Palmer
Room Heater by MHA Member Martin Palmer

St. John's, Newfoundland

Mastercraft Masonry
Stan Homola's new heater blog

Check it out

contraflow heater by Eric Moshier
Contraflow heater by Eric Moshier

Finnish oven
Finnish oven by Johannes Riesterer and Heikki Hyytiainen

(Compare with: 1930's-1950's Finnish commercial oven design ..... ed.)

Masonry heater by Antoine Guerlain
Room heater by Antoine Guerlain

Handbuilt core, shiner facing, American Clay plaster finish

Masonry heater by Stan Homola
New Heaters by Stan Homola

Kensington oven rebuild
Conversion of an existing vaulted grill oven to an indirectly
fired flatbread oven

by Alex Chernov

Tulikivi by Ron Pihl
Custom Rough Face Tulikivi, Tetonia, Idaho

by Ron Pihl

Energy Efficient Cooking and Heating Stove

Developed by Richard Jussel and fellow members of the Austrian Tile Stove Association

Firewood Life

by Hikari Fukazawa

Firewood Life by Hikari Fukazawa

Chat list for MHA Members only:

Subscribe to MHAmembers

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