Hi David;
You can have a small white oven above the barrel however controlling the heat might be a trial-and-error process.
For all your Montana Masonry Heater parts (also known as) Rocket Mass heater parts.
Visit me at
dragontechrmh.com Once you go brick you will never go back!
Thanks for your feedback.
I can't remember how warm it wil get on top of the barrel for a 7" batch. I guess it will depend on the distance between the top of the riser and the lid of the barrel.
If I was to incorporate a white oven chamber made of say 1/4 of a barrel,
Do you have any tips to make it safe/ efficient?
I thought of covering the oven metal surfaces with cob or tyles with mortar. I am concerned about potential oil spillages.
Would the weight of cob make the lid of the barrel any more likely to warp or deteriorate?