Heating my home with grow room exhaust?

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ExtremeMetal43

Active Member
My exhaust has a carbon filter attatched and the exhaust keeps the room a bit warmer. its a closet grow off the room with only a 400 watt light but the room is a lot warmer than the rest of the house. I like the fact i can use my lights inefficiencies to my advantage.
 
DrManhattan77

DrManhattan77

Member
jaded1958 said:
I disagree.

The warm air you are feeding the cold air return is not going to affect the operation or safety of your furnace. The term "back pressure" would only result from forcing hot air into a rooftop exhaust vent.
The portion of the heating system through which this circulating heated air travels is entirely separate from the portion of the heating system in which combustion takes place and through which the combustion by-products are vented from your home.

The heated air from your exhaust vent will not build up any significant pressure because A it is entering a much larger duct. B. Traveling for some distance before it reaches the circulation chamber. It will then travel through your furnace fan will be distributed amongst the myriad of heating vents. If this return air was traveling faster than the furnace fan is sucking, (not possible) it will only lessen the load on the fan motor.
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Feeding warmer air into your return will inturn make your furnace work less in the hvac world we do allot of preheating of return air systems it makes heating process work less and if you are feeding into a return duct it is difficult to build pressure because it is an open system.
 
I

in the woods

Member
I used to rent a house with a basement that i obviously used, and to its max. During the winter our house stayed a comfortable room temperature, except really cold days. We had around 9,000 watts of lighting in the basement, but between that and exhausting 6 room's exhaust it worked ;). never noticed any water forming on the inside of the windows, just a really relaxing smell all the time.
 
KidneyStoner420

KidneyStoner420

Well-Known Member
Jay Dubs said:
I once heard someone mention heating their home with exhausted grow room air, and i just blew it off as over complicating things. Now that i have recieved my second light bill over $300(without growing!), i have had a change of heart. I know it's the heat pump, because in the hottest month last year the bill was less than $175.

There is an a/c floor vent near the wall in my g-room, i had planned on just covering it, but i was thinking about exhausting my air into it during the cold season. All of the ducting is under the floor in the crawl space, if that makes a difference.

If you have heard of, or have done this, please let me know what issues you have had and what you did to solve them.

Jdubs
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Dubs, are you from new england by any chance?
 
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