Will adding firebrick to my wood stove help efficiency?

jsbush

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Nov 13, 2000
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I have a small wood stove to heat the garage. It has firebrick only on the bottom and about 5inches on the sides.

If I add firebrick to the sides would it help it output more heat?
 

BoomerD

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Feb 26, 2006
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Since the firebrick is basically there as insulation, no. (yes, it also holds heat and helps to radiate it longer, but that's NOT it's primary function)
 

FoBoT

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Apr 30, 2001
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no, you need cold fusion for that

the extra brick would keep it warm longer after the fire went out, but it can't put out more heat than it burns from the logs
 

jsbush

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Nov 13, 2000
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Originally posted by: FoBoT
no, you need cold fusion for that

the extra brick would keep it warm longer after the fire went out, but it can't put out more heat than it burns from the logs

Is there a way I can get it to speed up the combustion by making the air holes bigger?
 

Rubycon

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Aug 10, 2005
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Originally posted by: jsbush

Is there a way I can get it to speed up the combustion by making the air holes bigger?

Sounds like a good way to get a chimney fire after a night of banked down charge. ;)

Heck why not weld in a 1/2" supply nipple and feed it oxygen? :Q

 

WHAMPOM

Diamond Member
Feb 28, 2006
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Firebrick insulates the sides of the heater to keep the metal from burning through. Try a heat saver, goes on the flue pipe, thermostat controlled fan blows through tubes the smoke goes around.
 

jagec

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Apr 30, 2004
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Add some twists to the metal chimney to increase the residence time, therefore heat transfer, of the smoke.
 

DeadByDawn

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Dec 22, 2003
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Originally posted by: jagec
Add some twists to the metal chimney to increase the residence time, therefore heat transfer, of the smoke.

Also will add to the creosote buildup.
 

Rubycon

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Aug 10, 2005
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Originally posted by: DeadByDawn
Originally posted by: jagec
Add some twists to the metal chimney to increase the residence time, therefore heat transfer, of the smoke.

Also will add to the creosote buildup.

Yep, a cold stack is a condensing stack.
 

jagec

Lifer
Apr 30, 2004
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Originally posted by: DeadByDawn
Originally posted by: jagec
Add some twists to the metal chimney to increase the residence time, therefore heat transfer, of the smoke.

Also will add to the creosote buildup.

An occasional oxygen flush will take care of that.