1. Regulating Masonry Heaters
Masonry Heater Association of North America
Regulating Masonry Heaters
MHA : “MHA is an association of builders, manufacturers and retailers of masonry heaters and masonry wood fired bake ovens whose purpose is to promote the industry, sponsor research and development, shape regulations, standards and codes, inform and educate the public, and further the expertise and professionalism of its membership.”
About myself

2. Masonry Heaters: A Different Animal

3. Fireboxes Designed for Large Loads

4. Top Down Burn
Big Wood is Better
1.5 – 2 hours Burn Time
1 or 2x per Day

5. Integrated Heat Exchanger and Thermal Storage

6. Slow Heat Release

7. A Unique Combination
Short Burn Time
High Burn Rate
Slow Heat Release

8. To Eliminate the Causes of High Emissions
Cold Starts
Reloads
Low loads

9. A Masonry Heater Equivalent:
a Hydronic Heater with Storage + Radiant floor

10. How MHs Match Heating Requirements (considering the disconnect between burn rate and heat output)
Fuel Load
Firing Cycle

11. Why Regulate Masonry Heaters ?
Good for air sheds : Real life clean burning
Help improve adoption
Building permits
Bans
Grants & Change-out programs
Better appliances, better user manuals
push for adoption of BSER
push to better educate operators

12. What is MHA doing to get regulated ?
Fundamental Research for the Calculator
chemical composition of flue gasses
heat exchange / flow direction
Repeatability testing
Test Method
see following photo report from the Jan 2017 testing session at Mark Champion’s lab