Post by B.Rocket on Jan 2, 2020 4:48:09 GMT -8
Hello, First I want to thank Peter van den Berg who replied to an email I wrote him a couple of monts ago. And this is how I found this Forum.
My plan is to build a 200mm batch box heater. My Idea it to build it on the external corner on an internal wall. I want it's shape to be round. Why 200mm I want to put a heat exchange between the the double bell (Toby Hafner system) (so I have hot water foor my radiant wall heating and can heat my hole house) And I want to put an oven in the bell, I want it the stove to be big and heavy (minimum 3tons) So i have enough thermal storage.
10 year ago Installed soapstone mass heaters, so I have some experience.
What I already did: put a internal 200mm diameter and 9m high, insulated stainless chimney tubing (I have enough draft, it's 1.5m higher then the highest part of my roof and I live in a rural area)
I build a extra concrete wall and foundation slab in my crawly space to support the weight.
I bought second had 2.7 tons of refractory bricks (big blocks density 2.3g/ cm3)
I bought :Cast Iron door link
I bought: 50M of 15x1mm copper tubing
The questions I have:
I want to build my hole round bell (Internal diameter 110cm) with the refractory bricks I bought they are 12cm thick (they will be cut under the exact angle so minimal joints)
-My question; Is 12cm thickens to much? Ore what will the influence be it they where thinner/thicker) I plan to use stainless pins to pin them together so they don't move around (like I did with soapstone heaters)
-For the burn chamber I want to utilise the same bricks and add a 10mm thick ceramic board , good Idea?
-for the heat riser I want to build with insulation brick Insulation Brick link, ore would Ceramic board link Work to? Ore would a vacuum super wool tube be better?
-Between the internal and external bell I want to place my copper heat exchanger (Toby Hafner system).
Is it better to cut grooves into the bell and place them in the grooves so the tubes are closer to the heat source, ore should I inbed the tubes between the internal and external bell in Magnetite powder?
-For the external bell I plan to cast high density concrete blocks (8cm thick) (with magnetite powder and glass fibers for strength) which will be curved so the mass heater will be nice and round.
So the total thickness of the double bell would be (+/- 23cm)
- For the oven I want to place it higher then just on top of burn chamber since I want higher temperatures, my plan it to make an opening in my heat riser which is connected with my oven. Ore to have a shorter heat riser and have the heat riser completely enter the oven and then make a hole in the top of my oven. What do you think?
I'm very bad at making drawings/ sketches, I plan to post some pictures of the progress. Thank you so much!
My plan is to build a 200mm batch box heater. My Idea it to build it on the external corner on an internal wall. I want it's shape to be round. Why 200mm I want to put a heat exchange between the the double bell (Toby Hafner system) (so I have hot water foor my radiant wall heating and can heat my hole house) And I want to put an oven in the bell, I want it the stove to be big and heavy (minimum 3tons) So i have enough thermal storage.
10 year ago Installed soapstone mass heaters, so I have some experience.
What I already did: put a internal 200mm diameter and 9m high, insulated stainless chimney tubing (I have enough draft, it's 1.5m higher then the highest part of my roof and I live in a rural area)
I build a extra concrete wall and foundation slab in my crawly space to support the weight.
I bought second had 2.7 tons of refractory bricks (big blocks density 2.3g/ cm3)
I bought :Cast Iron door link
I bought: 50M of 15x1mm copper tubing
The questions I have:
I want to build my hole round bell (Internal diameter 110cm) with the refractory bricks I bought they are 12cm thick (they will be cut under the exact angle so minimal joints)
-My question; Is 12cm thickens to much? Ore what will the influence be it they where thinner/thicker) I plan to use stainless pins to pin them together so they don't move around (like I did with soapstone heaters)
-For the burn chamber I want to utilise the same bricks and add a 10mm thick ceramic board , good Idea?
-for the heat riser I want to build with insulation brick Insulation Brick link, ore would Ceramic board link Work to? Ore would a vacuum super wool tube be better?
-Between the internal and external bell I want to place my copper heat exchanger (Toby Hafner system).
Is it better to cut grooves into the bell and place them in the grooves so the tubes are closer to the heat source, ore should I inbed the tubes between the internal and external bell in Magnetite powder?
-For the external bell I plan to cast high density concrete blocks (8cm thick) (with magnetite powder and glass fibers for strength) which will be curved so the mass heater will be nice and round.
So the total thickness of the double bell would be (+/- 23cm)
- For the oven I want to place it higher then just on top of burn chamber since I want higher temperatures, my plan it to make an opening in my heat riser which is connected with my oven. Ore to have a shorter heat riser and have the heat riser completely enter the oven and then make a hole in the top of my oven. What do you think?
I'm very bad at making drawings/ sketches, I plan to post some pictures of the progress. Thank you so much!