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Old 10-03-2016, 11:02 AM   #1
Skoolie
 
Join Date: Dec 2015
Posts: 133
Wood stove hearth

So the 2 walls around my stove have about a 7-8 inch clearance from the stove. What would be best to put up? I was thinking of attaching some quarter inch sheet rock to the plywood walls and then adding the heat barrier an inch spaced from that but I'm not sure of ideal material. Will cement board style be likely to Crack? Should I go with metal?
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Old 10-03-2016, 02:37 PM   #2
Bus Crazy
 
Join Date: Nov 2011
Location: Sault Ste. Marie, Ontario
Posts: 1,283
Year: 1997
Coachwork: Thomas
Chassis: B3800 Short bus
Engine: T444E
Rated Cap: 36
I went with a layer of 1/2" cement board (the stuff with the fibreglass mesh in it) against my wooden walls then a 2" gap with a stainless surround. After which there is about 7" of clearance to the wood stove walls.

With much use of the stove it appears that I could have gone with less clearance from the stove to the stainless steel surround. The stainless gets fairly warm to the touch, but the cement board is only ever barely warm.

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Old 10-03-2016, 02:51 PM   #3
Skoolie
 
Join Date: Dec 2015
Posts: 133
Very helpful! Thanks, is that one piece of metal? What did you space it with? Looks like the cement board goes to the ceiling on one side? Is the steel just screwed to wood at the ends? What did you use for adhesive for the cement board?
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Old 10-03-2016, 03:50 PM   #4
Bus Nut
 
Join Date: Jan 2015
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Year: 2000
Chassis: International 3800
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I just posted a pic of my heat shield in my build thread "Somethin' Happened". I used corrugated tin and did a solid layer floor to ceiling and then flipped the tin and layered a shield the size of the stove itself. The corrugations in the tin create channels between the pieces of metal to help with airflow. It actually creates such an updraft you can feel the warm breeze blowing off the curve of the ceiling above the stove. The whole apparatus is spaced 1" off fire rated drywall which is mounted straight to the metal bus body and about 3" off the floor. Burned the stove super hot the other night and the wall and heat shield both stayed cool to the touch. Stove is 6" from shield.
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Old 10-03-2016, 04:46 PM   #5
Bus Crazy
 
Join Date: Nov 2011
Location: Sault Ste. Marie, Ontario
Posts: 1,283
Year: 1997
Coachwork: Thomas
Chassis: B3800 Short bus
Engine: T444E
Rated Cap: 36
The surround is made out of 3-pieces (left, right, rear) and U-shaped pieces were bent to attach the surround to the walls. I had the pieces professionally cut and bent (all out of a single 4'x8' sheet) since stainless is such a bear to deal with.




I also have a fan that pulls cold air off of the floor and pushes it up between the wall and surround then over top of the wood stove. This helps to keep the temperature close to uniform from floor to ceiling.
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