I just bought a wood stove. The woodstove has no firebrick. It"s just a burn chamber and then it looks like there"s an air chamber around that to trap heat. Will I get better performance out of this stove if I install fire brick to add some additional thermal mass?


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posted 6 years ago
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Thermal mass? No. BUT most stoves DO have a brick floor to keep from burning through. The heat of the coals right on the steel stove floor year after year degrades it; the bricks protect the floor.
posted 6 years ago

Mike Cantrell wrote:Thermal mass? No. BUT most stoves DO have a brick floor to keep from burning through. The heat of the coals right on the steel stove floor year after year degrades it; the bricks protect the floor.

This stove has no fire bricks on the floor. Should I add fire brick to the floor? And does it need some sort of metal grate like you have in a fireplace - to hold the wood? or do I just chunk the wood in there and set it on fire? It"s been fifteen years since I"ve had a wood stove. I don"t remember much
Yep, put firebrick on the floor. But no need for a grate. The stove should be designed so that air gets to the wood just fine.


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I looked at at least 100 used stoves this year and finally found the one I could afford and wanted. I saw NONE that had firebrick only on the floor. Most all were just steel. (and the bricks were not removed). My Wood Furnace has an air gap completely around the fire chamber. It has Firebricks on all sides. Even the back. But None on the Floor. That is where my fresh air comes in and also ashes fall thru the floor and go into my Ash Chamber. I pull out the ash drawer which is far below my floor grid. The top of my fire box has another protective welded panel and then two more walls. Hot air blows all around the second wall and out into duct work which is far above the furnace. I really see the need for the fire brick on the sides and back. Those coals get very hot and protect the steel walls. I would put firebrick on all three sides just for protection, If you can. Just my opinion. Good Luck