question for people who grow in cold climate

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Growing in poll barn in Michigan winter wondering what is best kjnd of heater to use thanks for your help
 

Rosebud

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One that will work to keep your grow around 75 degrees. And is not dangerous.
 

000StankDank000

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If the grow is big enough I'd install a unit heater on a thermostat if it's a smaller grow I would use a high eff propane heater that has all the proper safety's on it. I would also make sure I had enough fresh air for my heaters in the space.
Safety first with gas/electric heaters always
 

pcduck

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I use the oil filled electric one that you can buy at all the big box stores. I have propane heater in case I lose electric.
 

yooper420

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stick,
If I remember right, our garden rooms are a similar situation. I am putting back in the propane heater I was using, the girls seemed to like it better. It`s a wall mount, with thermostat, 99.9% efficient and low oxygen shutoff. Have a RV auto switchover valve with two 20 lb. tanks outside the room. Also 2 passive air intakes, 8" exhaust fan with 2" squirrel cage blower as backup, or for real cold weather usage. Do close one intake off also. Need the fresh air exchange year round.
 

pcduck

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That is because your propane heater is adding CO², yooper.
 

zem

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what about adding hps light when lights are on and shut off exhaust with electric heater when lights are off?
 

yooper420

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what about adding hps light when lights are on and shut off exhaust with electric heater when lights are off?
Sounds like it might work. If I had an HPS light I`d give it a try, but I don`t so I won`t.
 
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