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Thermostatic control for woodstoves with integrated fans

 
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I have had a catalytic BK “King” for decades.
There’s a variable speed fan knob at the right rear bottom.
The fan is a bit noisy even at low speed setting.
For years on cold nights (Anchorage Alaska) I’d bend over, turn it on after loading with birch for the night (bedrooms upstairs), only to be greeted by the noise in the am with a stove still putting out heat, but needing daytime refueling with spruce.
As I’ve gotten older I got even more tired of bending over and turned the switch on and off.
About 2 years ago I got smart!!
I purchased an Inkbird thermostatic switch from Amazon (maybe $30??). I used metallic heat resistant tape (NOT duct tape), the kind for taping exhaust pipe connections, to tape the thermocouple to the back of the air plenum for the fan near its top.
FWIW, setting the switching temperature at 123F, with a “gap” of 3 F so it stays on for a bit, works the best for me.
With the new Peltier fans, the big (noisy) fan stays off unless I really call for serious heat.
It only runs continuously if I turn the BK air inlet temperature past “2”.
Big improvement, should have done it a long time ago.
IMG_7901.jpeg
Inkbird thermostatic switch connected to a blaze king wood stove
 
master gardener
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Location: Upstate NY, Zone 5, 43 inch Avg. Rainfall
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I really appreciate the ingenuity.

Smart!
 
rocket scientist
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Location: latitude 47 N.W. montana zone 6A
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cat pig rocket stoves
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Nice Improvement Charles;
All it took was a little aging to make you figure out an easier way!
As I get older, I find all sorts of little things to make life a tiny bit easier, I sure wish I had done them 20 years ago...
 
Charles Aarons
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Another bright but belated brainstorm:
I’ve always had cats. I discovered wood pellet cat litter about 3 years ago. Much cheaper, much lighter, totally biodegradable. Regular pellet stove pellets work great. Around here ~$0.20/lb instead of $1-2/lb.
You scoop or remove with paper towels (used soiled ones) the fresh stinky am cat turd, put into used paper grocery bag if you want, and theow into the Blaze King.  Gone in no time, with a bit of btus recovered.
Summertime I have an area to dump them, along with stove ashes, sometimes crab shells etc.
 
pollinator
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Location: zone 5-5
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It can be hard to find a thermoswitch that will turn on when it gets hot.
Most of the heater switches/thermostats turn on when it gets cold.

I ended up with a variable attic fan switch that I put on the wall (I don't have to lean down) near the woodburner.
It currently powers a computer fan behind the stove.
I turn it down, set it just before the fan comes on, when I start a fire.
When it heats up enough, the fan comes on.
Before bed I set it as high as I can before it shuts off, so when it cools down enough it shuts off and the fan won't run all night.
 
Charles Aarons
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The $35 Inkbird ITC-308 will switch on either heating or cooling devices.
I’m also very happy with the built in Canada Peltier effect Ecofans.
Silent but definitely effective. Fans of either type convect heat away and the thermostatic air inlet combined with the otherwise airtight design of the BK automatically
 
craig howard
pollinator
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Location: zone 5-5
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I also have a duct that goes from the ceiling in the hottest room, down to the basement to keep waterpipes warmer.
The heat works it's way through the basement ceiling and warms the floor/room above.

It has an adjustable thermoswitch that can be set to turn on when hot or cold like yours.
I set that one and leave it the same.
It has a cord and a plug-in spot on the front. And a replaceable 5 amp round/glass fuse.

Suncourt DuctStat
Plugin Thermostat
Model DS01
 
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A rocket mass heater is the most sustainable way to heat a conventional home
http://woodheat.net
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