Properly Ventilation In Garage Grow Room

  • Thread starter CowboyOK
  • Start date
  • Tagged users None
CowboyOK

CowboyOK

3
3
I’m getting ready to build a 4x4x8 ft in my garage. I live in the Midwest where temps get high in the summer, and low in the winter. My question is when building this do I need to make room for a portable A/C unit and or Heater with vents at the bottom of the room and exhaust out the top? Or should I enclose the room filling and pull fresh air to the room from the house? My concern is the air in the garage will be to hot/cold for the grow room, and with the vents at the bottom bringing in the air, it will make it difficult to control the temp in that space.
 
JWM2

JWM2

Premium Member
Supporter
3,806
263
If you can conditioned air from the house is usually the most cost effective way of doing it. You may need to supplement a little extra heating or cooling in the extremes but if it’s well insulated you might not also. I just know we get some pretty crazy temps in the Midwest in the summer and winter so that’s at least a good place to start.
 
CowboyOK

CowboyOK

3
3
Thanks for the feedback. Do you think I should run it to the bottom of the grow room? The laundry room is only like 4 feet away, so a good exhaust should pull proper air back to it.
 
1diesel1

1diesel1

Staff
Supporter
11,121
438
I would try to avoid pulling air from the house. Your heating and air conditioning system is designed for specific square footage you’ll be making a bigger platform for it to operate which in turn makes it cycle more often and is extremely hard on it.
I grow in the garage rooms 10x10
9FC3AA3B 84C4 44E9 BD25 F7F1E9703655
its loosely put together with straight up TPO framed 2xs top and bottom similar to a picture frame.
Image
Image
i pull air from the garage for ventilation. The room has no insulation but the garage does. It’s been below freezing lately and the room with lights out don’t get below 65f. I run 2CMH at 350w a piece and 2HPS at 1150w a piece. Cooling I use this LG Home Depot portable A/C and vent it into the attic so I’m not heating the garage.
746A359A 08C1 4261 8060 524C26AD8FBB
79B0C03A 0E82 4158 A48F 8ED7EA9406B1
99108477 1877 4101 9FC6 BED545CC7104
56B1BB44 0387 4214 95A0 4E07E60951AB
dont forget your charcoal filter
276CC511 37E3 4EEF AA28 7201868CD2E1
and your dehumidifier
9B18D9B9 BFE8 4B1C 9B3D 690C2DD8198E
all these tools are required to have a successful grow experience in my honest opinion. I no it all sounds expensive but think of it this way bugs are free:) happy growing!!
 
CowboyOK

CowboyOK

3
3
Awesome, I think I’ll be able to direct the cooled air properly with some ducting and a controller to my grow room. Thanks for all the help!
 
Dan789

Dan789

2,954
263
Another thing you may want to consider is adjusting your growing window to line up with those median temps, not too hot, not too cold. I’m growing in a one car slot in my garage that I partitioned off. I start in September and grow through the winter, finishing in the spring. Now it may not get as cold here in Northern California, (rarely freezing) but just as hot or worse than many places in the summers 100+ continuous. Also what I’ve done is to have both blooming and veg’ing going on at the same time, (three tents) but offsetting the timing so that I’ve always got lights on. This relieves the need for aux heat needed by just running during the day, also avoids minimizing peak electrical use (remember California). Another thing I concentrate on is keeping the RH in check, running both a humidifier and dehumidifier as necessary. But I’m totally led (cobs) for bloom and T5 for veg, so more variables... With all that I keep tent interiors between 65-80 degrees, constantly exhausting all tents through ducting to a central 6” fan and out back into the space through a phatt charcoal filter.
 
98B5893C 1ED4 4EF9 A98D E2670D00BC57
Top Bottom