Thanks, it was pretty simple to build and really cheap. Plus all the materials were easy to find. No special tools needed. The most expensive and difficult to install component was the 8in stainless steel chimney liner. I needed some help from another person to install it. I chose to do pea gravel in case it didn't work well or I decided to remove it in the future. Cob would work even better and we would probably burn much less wood. Cob is a lot more permanent though. If I build another one I am confident enough to build it with cob.
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You also have woodstove(s), right? Whatβs your strategy for where to put the RMH vs. woodstove?
My dream has long been a woodstove with a cob wall behind it and its pipe, and a cob floor in front π
I don't have a wood stove. I chose to put the RMH in close proximity to the chimney. I basically wanted to heat my house with wood in the cheapest, easiest, most efficient way possible. So I built the RMH core next to chimney and made a tall stack bench/mass at counter height vs a sitting bench. This saved floor space in the room. Basically taller skinnier mass vs short and wide. This way it all fit nicely in the room and I didn't have to do anything complicated. I could just use the chimney I already had from the existing fireplace.