The riser is an 8" ceramic fiber tube, it could be shorter but it is being used as a whole.
Cassie Langstraat wrote:Some more pictures of the batch box rmh.
(Photo(s) by Art Held)
Danette Cross wrote:
How big is that building? I am wanting to heat a 36'x48' insulated metal building on a 6" slab.
Satamax Antone wrote:Instead of barrels, i use home heating fuel tanks.
You can also find stainless steels ones, for foods, in large shapes.
Matthew Goheen wrote:If appearance is your source of dislike for metal barrels or other metal chambers, they can be covered with cob, brick, and or other masonry, which would improve the appearance, and shift the balance away from immediate heat radiation toward absorption and slow release from the masonry mass covering the barrel and/or bells...
Hans Quistorff wrote:Where in the building would you like to locate the heat? Would you use it for purposes like heating water for dye making/setting? Wold the Walker stove fit with your needs with perhaps a bench for heat storage instead of the oven.?
Satamax Antone wrote:Danette, i have a cast iron firebox top. Takes a while to heat. But at the end of first load, i can Cook on it. And a glass door.
Check chimney retrofit and vertical batch threads at donkey's. There's few sketchup drawings that i have made. Which include a cooking plate.
Glenn Herbert wrote:Nobody really knows how long the RMH barrel in a dwelling or dry shop will last, because the oldest (20 to 30 years) are still reportedly working. For the combustion core, hard firebrick as the Wisners use will probably last numerous decades, though the first brick in the burn tunnel roof sees exceptional thermal stresses and may fail sooner. That is about the most accessible for replacement, though. Other more insulating but soft components will give higher performance but may have shorter lifespans.
It would be wise practice to build your RMH with the core accessible for inspection and possible future repair. This can often be done without tearing up the casing if planned right.
Glenn Herbert wrote:I don't know how durable the ceramic fiber board is; hard firebricks can last many decades outside of industrial-grade service.