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Cob + Firebrick = Masonry Heater Experiment

Nate Johnson

Joined: Mar 29, 2012
Posts: 2
I got some clay and sand and firebrick and put together an experimental (for me, anyway) small masonry heater this last winter. I wrote about it for my friend Max Edleson and his website Hand Print Press.
You can read more here:


[Thumbnail for 42 finished heater-small.jpg]

Gary Stuart

Joined: Sep 23, 2010
Posts: 27
Location: Wakefield, Quebec, zone 3b/4a CAN
Thanks for this Nate, I'm still trying to decide how to heat our next house and the creative juices are flowing.

Our blog/site about day to day life as onsite caretakers of a ranch & retreat, and our journey to become more self-sufficient
Ernie Wisner

Joined: Oct 16, 2009
Posts: 789
Location: Tonasket washington
Nate is that one of Max's designs? looks good.

Need more info?
Ernie and Erica
Wood burning stoves, Rocket Mass Heaters, DIY,
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Nate Johnson

Joined: Mar 29, 2012
Posts: 2
Thanks, Ernie. The design was definitely inspired by Max's experiments with the "cabin heater" he posted about on his website, but really I just made it up myself based on previous experience building large contraflow heaters, and trying to fit it into the room.
James Haim

Joined: Sep 20, 2012
Posts: 1

Beautiful and inspiring stove. Any idea how it weathered it's first year as far as cracking?

James Haim
subject: Cob + Firebrick = Masonry Heater Experiment