Hello,
i am working on my first RMH and am wondering about the temperatures inside.
I found information that temperatures inside the core can go up to 1000*C. But what about other parts of the heater ?
- what is typical max temperature at the top of the primary bell ?
- what is typical max temperature at the bottom of the primary bell (floor) ?
- what is typical max temperature at the top/bottom of secondary bell (bench) ?
- i found information that chimney temperature will usually go between 60-100*C
the reason i am asking is so i can better choose the materials:
- to isolate the floor. the heater will be build in the room with concrete floor, i don't want the heat escaping into it, so i want to build a proper insulation layer below the heater. I saw how perlite can be used but i am worried about building on top of loose perlite so i would prefer to use something load bearing. I was thinking about using YTONG blocks covered by a layer of concrete made out of cement and perlite.
- to isolate the back wall of the heater and bench which is going to be build against the wall stone of the room. I was thinking about double skin bricks with a layer of ceramic wool in between them. I don't like it so much as there is still one layer of bricks absorbing the heat there. I was thining about using ytong blocks instead of bricks for the back wall of the bench, still doing double skin with ceramic wool in between. ytong blocks are ok up to 600*C, so i want to be sure temperatures inside my bench are not going to reach that level. I am wondering if i could do the same for the back wall of the primary bell ?
any other suggestions on how to insulate the floor and back wall ?
thank you.
