Hello, I am working on installing a Trolla 107a that's in good condition. I need to mount it so one side is facing the room and the other side is about 13" from the wall. Rather than mounting a huge heat shield one inch from the wall, can I bolt a smaller one to the stove? I would leave room for more than an inch of circulating air between the stove and the shield. I could make it large enough so there would still be metal between the stove and anything combustable within 36". I believe that the standard states a wall shield must be a at least one inch from the wall. Is there a maximum distance? Thanks for your thoughts.
Ok to make a heat shield for the stove rather than the wall?
- Thread starter Dmils
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I disagree with you bg. The code only says atleast 1". All it is doing is blocking direct radiant heat. It works just as well on the stove as it does on the wall. It is just the same as using a pipe sheild.
The clearances and construction options for a wall shield are clearly spelled out. Walls in a residence are of predictable construction. Can you show me a clearance reduction table for a shield on an unlisted appliance? How would one know if the requested 13" is safe or not?
A shield on a pipe reduces clearance 50%. By that logic on a stove it would be a reduction to 18". What rule applies here? Does it apply universally to all stoves? Typically adding a heat shield to the back of a stove does not create a 66% reduction. Look at tested stoves that have both options. For example this is from the Jotul 8. They tested with and without a rear shield and came up with a 36% reduction.
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A shield on a pipe reduces clearance 50%. By that logic on a stove it would be a reduction to 18". What rule applies here? Does it apply universally to all stoves? Typically adding a heat shield to the back of a stove does not create a 66% reduction. Look at tested stoves that have both options. For example this is from the Jotul 8. They tested with and without a rear shield and came up with a 36% reduction.
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Thanks to both of you. I can see it both ways. I had not thought of the comparison to the pipe shield, or to the tested stoves. Part of the difference may be that the stove shield would consist of less metal and therefore be less effective at blocking or distributing the heat. BG, I take your point that it's untested. With that in mind I've gone ahead and built a proper wall shield. Curious though, is there a formula for how much radiant heat a 24 gauge sheet of steel will reflect or transmit?
Yes, I'm sure there is, thermal conductivity of materials can be looked up. I suspect a shiny sheet of stainless steel would reflect the most heat.
https://www.engineeringtoolbox.com/thermal-conductivity-metals-d_858.html
https://www.engineeringtoolbox.com/thermal-conductivity-metals-d_858.html
dmils,
Use both a stove shield and a wall shield. Using both brings clearances for some Vermont Castings stove models below 12 inches. Also 24 gauge is often stated, but 29 gauge is adequate. Canadian regs require 29 gauge. I hear the Canadians burn a bit of wood. STJP
Use both a stove shield and a wall shield. Using both brings clearances for some Vermont Castings stove models below 12 inches. Also 24 gauge is often stated, but 29 gauge is adequate. Canadian regs require 29 gauge. I hear the Canadians burn a bit of wood. STJP
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