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FireThe E-zine for Heater Masons

Masonry Heater News

Oct 07, 2015

Top 10 Articles

Best Technical Articles and Discussions

View Older Articles

Disclaimer: Content of this e-zine is at the discretion of the Editor,
and does not
imply endorsement by the MHA Board of Directors

MHA Board of Directors
2015 - 2017:

President Dan Givens
Vice President Marty Pearson
Secretary Ron Pihl
Treasurer  Doug Hargrave
Members at large Boris Kukolj
Chris Prior
Matt Helicke

Executive Director - Dick Smith
Masonry Heater News Editor - Norbert Senf
Webmaster - Norbert Senf
Webmaster -
Max Edelson

After Volkswagen Revelations, Auto Emissions Tests Come Under Global Scrutiny

The New York Times, Sep 24/15

OMAFRA Advanced Boiler Testing

MHA's Lopez Labs (Shawville) is sharing resources with
Ontario Ministry of Agriculture's advanced boiler testing
project. Terrence Sauve is an engineer with the ministry, who
I met at the Ontario Stove Testing Camp.

Repair details 24 years later

by Marcus Flynn

Handbuilt corner contraflow heater 22"
Handbuilt 22" corner contraflow heater core

Sketchup model by Masonry Stove Builders

International Residential Code (IRC) changes door requirements for fireplaces

Interesting new stove development

Contraflow heater by Marcus Flynn

Reused clay brick c. 1900 and concrete floor tile, c 1920.

Heater by MHA member Anna Ledford

Laboratory and field investigations of PM and CO emissions from traditional
and improved cookstoves

Christoph Roden, Tami Bond et al, 2008

Relationship of Visible Smoke and Particulate Emissions

Environment Canterbury Regional Council, New Zealand, 2014

Fantastic list of technical links

Via Allan Turner (facebook)

Small Biomass Boiler Factsheet

by Terrence Sauve
Terrence is a PE who attended the recent Ontario stove testing workshop

Ontario Stove Testing Camp, July 9-10, Kingston ON

Crispin Pemberton-Pigott was the presenter. 

Development of a Low Smoke Mongolian Coal Stove

by Crispin Pemberton-Pigott, 2011

Basic Operating Parameters of a Natural Draft, Top-Lit Updraft Gasifier (ND-TLUD)
by Julien P. Winter (2015)
Julien is a soil scientist who participated in the recent Ontario Stove Testing Camp

MHA member Red Clay Construction, Prince Edward Island

Plaster by Syuhei Hasado

Fascinating video on the role of charcoal in Japanese culture

Origins of EPA Method 5 and the Condar

by Dr. Stockton Barnett, 1985

The Clean Warmth of an Engineered, Regulated Fire

Companies and organizations speak out about U.S. EPA’s new source performance standards for residential wood-fired appliances.
- Biomass magazine

See also: New high mass brick oven by Eric Moshier

Tulikivi petitions EPA for reconsideration

Contraflow Kachelofen by Raivo Koppel

Contraflow Heater by Marcus Flynn

Wakefield, Quebec

HPBA files lawsuit against EPA

Outdoor kitchen by Carsten Homstead and Jon Santiago

Biomass 101

Fireplace retrofit by Damien Lehmann

Interesting pizza oven comments from Bob Ciciora

from the MHA Members Yahoo list

Heater by Pal Szentgròti, Hungary

Pal studied with Lars Helbro

Ontario Stove Testing Camp

July 9 - 10, 2015
Odessa, Ontario

eco firebox by Carsten Homstead
Eco firebox by Carsten Homstead

"...Eco firebox with custom door air frame.
Tight sealing Ortner cable controlled air intake damper located in the basement for easy access and connection to the outside if necessary.
Pull it open, light a fire and push it closed within the coal phase.
Doesn't get any easier unless you automate..."

Summer masonry heater workshops with Eric Moshier

Rocket stove workshop with Andrew Brunning

MHA Technical Committee Report

March 19, 2015

MHA Technical Committee Action Plan 2015 - 2016

April 23, 2015

Firetube demo

Wildacres 2015 photo report

MHA Offers Hands-On Classes on Masonry Heaters
Find the class closest to you.
HMED class can be used as one of the necessary prerequisites to become a Certified Heater Mason

48" dome oven, using #1 tapers

with Marty Pearson

Wildacres Videos

By Joe Janowski

Cold smoker (masonry cooler) with Chris Prior

at Wildacres 2015

Rocket stove workshop with Peter van den Berg

Updated on Apr 27 with additional comments by Peter.

Workshop with Igor Kuznetsov in Russia, June 20--29, 2015

Time lapse video
of Eco Firebox by MHA Tech Committee member Carsten Homstead

Schedule of Events for MHA Annual Meeting at Wildacres, 2015

Current List of Registered Attendees for Wildacres 2015
Frequently Asked Questions About the Annual Meeting

The birthplace of pizza

Guelard style 6'x6' oven with external firebox

by Alex Chernov
Oven can also be directly fired

Cookstove by Jessica Steinhauser

Cambrils, Spain

See a seminar with Alan, that he presented at MHA in 1995

Bakeoven vault in Sketchup

Learn how -- Sketchup clinic at Wildacres

Heater Building Mission to Ukraine

 (click here for video)

Concrete faced heater with cookstove - construction sequence

In the style of Marcus Flynn

Commercial biomass combined power and biochar project

Biomass magazine

masonry heater by thermass
Masonry heater video by MHA member Thermas

New NSPS Regulation

Official text as published in the Federal Register, May 16, 2015

masonry heater details via Boris Kukolj

reply to press inquiry (Norbert Senf)

EPA approves new woodstove emissions standards (newspaper article)

Vertical panel BTU chart

Two bell rocket stove mass heater

Computer simulation by Martin Karl Waldenburg, Germany

Also be sure to check out this simulation

Mixed Convection in Vertical Ducts

Nicolas Galanis and Amin Behzadmehr

Contraflow heater by Marcus Flynn
Hand built North American style Contraflow by Marcus Flynn

Reefton, Victoria, Australia. Finish work by owner.

Vertical stacking with the eco-labelled firebox

Lopez Labs Co-Operative

New Japanese Masonry Heater website

by MHA Associate Member Aki Yoshimizu - English version should be online soon

My cat likes hot rocks

Carsten Homstead

Heater comparison testing at Ortner Company, in Austria

by Alex Chernov

Energy Independent

Off grid couple changes out a boiler for a Tulikivi

Finnish research into firebox sidewall air

1991 - 2000 Field testing of Kacheloefen in Austria

Good article on the proper way to measure wood moisture in the field


Residential Heating with Wood and Coal - health impacts and policy options in Europe and North America

World Health Organization

Impressive study that really pulls a lot of information together from both North America and Europe and provides a very good perspective on the health issues and policy implications regarding wood smoke..... ed.

Options for Reducing Woodsmoke

Download Powerpoint presentation presented to Utah state and county officials
by Alliance for Green Heat
February 24, 2015

Masonry Heater in Ireland

by Hendrik Lepel

Kachelofen with black pizza oven, by Jessica Steinhauser and Mario Zauner

Vail, Colorado. Firechamber meeting Austrian "Umwelt Plus" spec.

Eco Firebox testing in France

Making traditional Kyrgyz Tandyr Ovens

Tile finished heater by Stan Homola

Roseburg, Oregon 2003

Improvements in Austrian wood fired boiler emissions 1980 - 2004  (carbon monoxide emissions)

Black oven - freestanding or as insert into heater.

Mobile kitchen. Samarkand, Uzbekistan  (via Facebook)

Kachelgrundofen in Guelph, ON by Jessica Steinhauser and Mario Zauner

Cookstove Eco-firebox

Wood Combustion Basics

Rick Curkeet, Chief Engineer, Intertek

Custom heated bench layout for client's mason - Sketchup

- stacked heaters, wood storage to the left with bench in front
- 3D model communicates more information than architectural plan drawings.

Report on the performance of a 2 storey heater

by Alex Chernov

New law opens possibilities for those who want to heat with wood

Montreal Gazette

Heater by John Fisher

Glade, British Columbia
The water coil shown is reported to easily handle household hot water needs

Chimney Connection #14

by Marcus Flynn

Installing the Bayshore Community Oven

John McDougall prefabricated the oven at his shop.
Link to Facebook album

Masons on a Mission

Lighting a match

Bakeoven by MHA member Aki Yoshimizu

Roots Cafe, Nagano Japan

News from Firespeaking

Heater by Marcus Flynn

Cantley, Quebec. Recycled bricks from 1910.

Free 3D Sketchup Models of Masonry Details

From the International Masonry Institute
Models can be downloaded at the 3D Warehouse (registration required)

Comparison of 8 Cold Climate Passive House Envelopes

Home Energy magazine

John McDougall, oven builder, and Mete Pamir, community organizer with 
the first community oven in Ottawa, Canada

Retrofitting an Austrian eco-firebox.

Bake oven by Max Edleson

In the style of Alex Chernov and Marcus Flynn

Custom refractory casting for connecting a contraflow  heater to an 8" stainless chimney liner.
(Masonry Stove Builders)

Single skin heater workshop with Alex Chernov

Blue Quills First Nations College, St. Paul Alberta

Photo report from the Woodstove Design Challenge

Contraflow heaters and cookstoves by Slovak stove-builder Marian Ozabal

Submitted by Marcus Flynn

Images from the 2014 Collaborative Stove Design Workshop
at Brookhaven National Laboratory

Bakeoven with side air

Built by Homestead Heat in collaboration with Jon Santiago and Jeremiah Church

Castable Refractory Concrete - Observations 20 years later

by Marcus Flynn

Contraflow heater, Passivhaus 

Mansfield, Ontario
Heatkit core. Limestone finish work by Stovemaster

Details of Austrian Eco-labelled air system

Sketchup heater update

Contraflow heater by Feu Vert

St. Irene, Quebec.
Bake oven, three flue chimney, heated bench. 
Black granite with 3 different finishes - flamed, polished and honed.

Visit at Marcus Flynn's house

with Aki Yoshimizu and Norbert Senf.

MHA issues timeline for development of masonry heater certification software

HMED Workshop, Perth ON Sep 11 - 14, 2014

Contraflow heater by Marcus Flynn with Heatkit core
Contraflow heater by Marcus Flynn

Recycled Ormstown brick with Rose Arc en Ciel sandstone trim

Outdoor bake oven by Marcus Flynn
Exterior oven built in the style of Stovemaster

by Marcus Flynn

Facebook update from Hendrik Lepel

Slide from EPA presentation at AWMA conference in Montana August 7/14

"read the tea leaves"

Could you get a 65% annual return from a wood-burning boiler?

The Telegraph

bake oven by Steve Cohan
Bake Oven by Steve Cohan

Contraflow masonry heater by Marcus Flynn
Contraflow heater by Marcus Flynn

Reclaimed brick from 1900

Mobile pizza oven by Dave Wilcox
Mobile pizza oven by Dave Wilcox
NY commits $27 million to build wood heat industry

Wall Street Journal

On a recent motorcycle trip around the Gaspé penninsula, former MHA President Steve Bushway
presented Marcus Flynn with a ‘Certified Heater Builder’ pin at his home in Quebec

Stoves Competing for Spots in the Stove Design Workshop

Alliance for Green Heat announce entries

EPA Bolsters legal case for NSPS with new data

Alliance for Green Heat

Quebec offers 20% tax credit on masonry heaters.

Thanks to Marcus Flynn for the link

Russian TV kitchen

via Facebook

Greenhouse heater

by Max Edleson and Kiko Denzer

Fire Threat turns Energy Asset

Biomass magazine

From Facebook: Posted by Andrew Musiyaka

MHA Adds vBulletin Forums to website

Check it out

Cordwood Testing in a Non-Catalytic Wood Stove

Brookhaven National Laboratory, June 20, 2014

Wood Stove Politics: Democrats, Republicans and Unlikely Bedfellows

Biomass Magazine

Official MHA Submission of Comments to EPA regarding NSPS

Wildacres 2014 Report - (draft - updated on May 16)

MHA Heater Mason Training - - Schedule for 2014

Masonry heater hot water workshop with Joe Copeland, Eric Moshier and Dan Givens

Eco-labelled firebox testing update

from Boris Kukolj

First Masonry Stove in Izu Peninsula, Shizuoka pref., Japan

Martin Pearson, Jessica Steinhäuser, Brian Klipfel, Aki Yoshimizu and Kada Yuichi in Ito-shi, Japan.

Contraflow masonry heater by Marcus Flynn
Contraflow heater by Marcus Flynn

Asquith, Saskatchewan

Fireplace Retrofit by Masonry Stove Builders
Fireplace Retrofit

by Norbert Senf and Mike Payne

May 19/14: Alex Chernov (center) with Paul and Stefan Polatchek, at the ORTNER test facility in Austria.
They are building a triple skin and a double bell heater, to directly compare performance.

Pizza oven, Dalat Vietnam, sent by Tom Trout

Click for details

2014 Attendee list

MHA Annual Meeting Agenda - April 14 -20, 2014

Check out last year's meeting

Testing the Austrian Eco-firebox

Updated April 12/14 with 18 additional runs by Homestead Heat

Click for more

Masons on a Mission
Masons on a Mission

MHA asked to help build a heater on a Navaho reservation

Front row: Alex Larsen, Matt Helicke and Martin Palmer

Muskoka Kachelofen with acorn motif by Jessica Steinhauser

Heat Kit heater by Martin Palmer
Contraflow heater by Martin Palmer and Tim Murphy, Bay Bulls, Newfoundland

EPA Releases Proposed New Regulation, which includes Masonry Heaters

Masonry Heater Summary

John Ackerly, via Facebook

Observations 18 Years Later #2

by Marcus Flynn

Woodstove could save the world

Popular Mechanics

Renewable Heat NY funds 18 woody biomass projects

Biomass magazine

Measuring particulate emissions on a pellet stove with the Testo 380

(in German)

Heater build in Australia

by Marcus Flynn

The particulate emissions from all of the masonry heaters built in the U.S. in one year (about 500) equals the emissions from about 5 outdoor boilers.  The above photo demonstrates exactly why.
Based on data from the recent NYSERDA boiler field study, and research at MHA's Lopez Labs,  
Photo is from a great U.S. Forest Service article explaining NSPS

OMNI comparison data for the Condar portable dilution tunnel

This portable sampler is used by MHA's Lopez Labs
Correlation with EPA Method 5G-3 over 11 runs is fantastic!

White birch crib igniting from the side, shot at 240 frames per second.

Check out run HK-M16 - a white birch crib with side ignition and extensive video documentation

Maine Sunday Herald

Running a masonry heater emissions test

Lopez Labs instructional video - thanks to Jon Santiago for the camera work.

Masonry Heater testing at Lopez Labs
Fuel Crib testing at Lopez Labs

Updated February 3/14

Slow motion gas explosion video - mesmerizing

Update from Japan

by Aki Yoshimizu

Contraflow core with Tulikivi soapstone custom bench

Warmstone Fireplaces & Designs, Montana

Project in Vogues, France

by Marcus Flynn

Rocket Powered Kiln of Clay and Sawdust

by Kiko Denzer

Hybrid Oven

by Max Edleson

Kachelofen and Cook Stove by Jessica Steinhauser   (via Facebook)

Pisla HTT 602 door retrofit

NSPS: The Devil's in the Details

Biomass Magazine

Click for current MHA Newsletter

Gary is a P.E., an MHA Voting Member, and a partner in CrossFire Fireplaces

(Via Google Translate)

Biomass Magazine article

Wood Stove Decathlon
Testing Observations at the Wood Stove Decathlon

Particulate Sampling Comparison Testing at Brookhaven National Laboratory

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