Eddie G
- 14
- 3
Thanks for the reply! Your right, one unit would probably work fine in that space when it's empty. But when it's packed with transpiring plants it would Definitely not be enough.30 by 100................ i would put at least four of those quests. thats alot of plant material and water in the room. at least 250 to 500 gallons of water (in pots and plant matter)
Really? A lot of farmers around here get pm. also it hits 80 degrees regularly. won't the inside of the greenhouse be 10 to 20 hotter? I am hoping to build it with roll up sides, and framing the ends with huge fans.Based off those weather averages for your area an A/C or cooling of any sort is not needed.
12x20 poly tunnel is same way.. build an end wall, wrap the back.. then my sides roll up with a fan rigged over them. Just get that air in low and blow it around to cool it. Also if shit gets bad, freeze gallon jugs of water and put them in front of a few fans, when they melt, swap em out.Really? A lot of farmers around here get pm. also it hits 80 degrees regularly. won't the inside of the greenhouse be 10 to 20 hotter? I am hoping to build it with roll up sides, and framing the ends with huge fans.
Are you running this year round? Or just full season?
If you have good air exchange and circulation the inside of the greenhouse should not be any hotter than the outside ambient temperature. Keeping your greenhouse warm and dry with good airflow will help prevent PM. Unless you are in a climate that hit over 90 regularly I think cooling is a waste.Really? A lot of farmers around here get pm. also it hits 80 degrees regularly. won't the inside of the greenhouse be 10 to 20 hotter? I am hoping to build it with roll up sides, and framing the ends with huge fans.
So your recommending just a few exhaust fans for negative pressure and air exchange. Do i use an intake fan as well? I'd rather it be sealed than have the sides open for pest reasonsIf you have good air exchange and circulation the inside of the greenhouse should not be any hotter than the outside ambient temperature. Keeping your greenhouse warm and dry with good airflow will help prevent PM. Unless you are in a climate that hit over 90 regularly I think cooling is a waste.
Remember that if you go the route of roll up sides, your exhaust fans won't have any effect. You need to set up your greenhouse to either have passive ventilation, via roll up sides and a ridge vent, or active ventilation, where the greenhouse is totally sealed and exhaust fans extract the hot air and exchange it for outside air.
If your exhaust fans are powerful enough, your intake can be passive.
Confusing...I have terrible news, Unfortunately the county is not permitting new greenhouses on existing cultivation sites. I have to remove the existing structures to stay compliant. At least we can continue to grow outdoors (wich was technically banned) but now the existing sites; illegal under local law, but legal under state law can continue....
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