|
|
|
|
|
|
|
|
|
|
|
|
|
Gerry Parent wrote:
Elyes Kallel wrote:HI,
I have a steel bell with such dimensions (view attachment 1). Height is, obviously, too long compared to diameter.
I have been inspired by the "Liberator rocket heater" model (attachment 2). Unfortunately I don't have the dimensions of this model
Concerning the burning chamber, I am planning to insulate it from inside with a 2 cm refractory cement layer cast
So my questions are:
- What is the best height for a 40 cm bell ?
- What about the dimensions of the J tube ?
- Is castable refractory cement a good insulation material? and is 2 cm thinkness OK ?
Hi Elyes.... Welcome to the Permies RMH forum.
What size of building are you trying to heat? Dimensions will vary according to whether you choose a typical 6" or 8" J tube.
Do you have experience with casting? I know several seasoned builders here have and it seems a lot harder way to start a first build.
Have you instead considered fire brick?
What is the shape of your steel bell? Round or square?