Baro with a bimetalic air inlet

Baro with a bimetalic air inlet

PostBy: Smoker858 On: Fri Feb 05, 2010 9:50 am

I have been burning free firewood for about 30 years in a VC Vigilent. I purchased the stove with the coal conversion kit which I used back in the early 80s w/o a baro.
So since free wood is getting scarce I will transition to Nut coal.
The question is [b]With a heat sensitive bimetalic self regulating air makup what reaction will the Baro have?
Perhaps I should find a sweet spot and occasionally manually adjust and lock the air inlet.
Comments please.
Smoker858
 
Hand Fed Coal Stove: Hitzer 50-93
Baseburners & Antiques: Reading Stove Works Penn circa 1900
Coal Size/Type: Nut
Other Heating: nat gas
Stove/Furnace Make: HITZER
Stove/Furnace Model: 50-93

Re: Baro with a bimetalic air inlet

PostBy: WNY On: Fri Feb 05, 2010 10:24 am

The baro should automatically regulate the draft dependent on the Heat output. You may have to experiment, but when the damper opens (reduces draft), the baro should close to maintain the setpoint and visa versa.
WNY
 
Hot Air Coal Stoker Stove: Keystoker 90K, Leisure Line Hyfire I
Coal Size/Type: Rice
Stove/Furnace Make: Keystoker, LL & CoalTrol
Stove/Furnace Model: 90K, Hyfire I, VF3000 Soon

Re: Baro with a bimetalic air inlet

PostBy: coal berner On: Fri Feb 05, 2010 10:39 am

Smoker858 wrote:I have been burning free firewood for about 30 years in a VC Vigilent. I purchased the stove with the coal conversion kit which I used back in the early 80s w/o a baro.
So since free wood is getting scarce I will transition to Nut coal.
The question is [b]With a heat sensitive bimetalic self regulating air makup what reaction will the Baro have?
Perhaps I should find a sweet spot and occasionally manually adjust and lock the air inlet.
Comments please.

Being the bi mentalic thermostat control the stove draft / air input on the stove and the baro controls the chimney draft
you should not have any ill effect running the stove on coal Just make sure the baro is level and set up with a manometer or a draft gauge
coal berner
 
Stoker Coal Boiler: 1986 Electric Furnace Man 520 DF
Stove/Furnace Make: Electric Furnace Man
Stove/Furnace Model: DF520

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Re: Baro with a bimetalic air inlet

PostBy: franco b On: Fri Feb 05, 2010 4:53 pm

A thermostatic bi-metal air control senses stove heat and opens or closes to maintain the set heat. There is, however a delay before the bi-metal can sense a change and respond. By keeping the draft constant with a barometric damper the heat output will fluctuate less and be more even.
franco b
 
Hand Fed Coal Stove: V ermont Castings 2310, Franco Belge 262
Baseburners & Antiques: Glenwood Modern Oak 114
Coal Size/Type: nut and pea

Re: Baro with a bimetalic air inlet

PostBy: grizzly2 On: Fri Feb 05, 2010 5:35 pm

My Hitzer also has the bimetalic spring controlling air intake. I first set up without the baro. for the same logic you expressed, ie. stove gets hot, air intake is reduced therefore no runnaway fire, even when the wind blows hard creating a very strong draft. My stove does work just like that. However I overlooked that there is more to maintaining an EFFICIENT fire than that. The good folks here convinced me that too strong of a draft will still suck air up the chinmey faster than a properly regulated draft.

I set up the baro. and manometer as recommended, and guess what... My flue temperatures dropped about 50* to 100* . The heat lingers in the stove longer and heats the house more and the chimney less. The result of our bi-metalic draft controls and a baro. damper is amazingly even and efficient heat output. :D
grizzly2
 
Hand Fed Coal Stove: Hitzer 30 - 95
Coal Size/Type: pea and nut/ anthracite
Other Heating: Jotul #3 wood stove in garage. Oil backup in house. Electric backup in house.

Re: Baro with a bimetalic air inlet

PostBy: Smoker858 On: Fri Feb 05, 2010 6:04 pm

Nice Thank you all for the fantastic response. I can't wait to burn up my wood pile
Smoker858
 
Hand Fed Coal Stove: Hitzer 50-93
Baseburners & Antiques: Reading Stove Works Penn circa 1900
Coal Size/Type: Nut
Other Heating: nat gas
Stove/Furnace Make: HITZER
Stove/Furnace Model: 50-93

Visit Hitzer Stoves