Depending on the budget, I’d just buy two metal box fans and make a breezeway of sorts in there. Both fans mounted to the top on the screen door from the inside, one fan blowing in, one fan blowing out. I use a very similar setup on one of my smaller greenhouses and it works great. A temp control sensor set at 80 will make life easier as well.
ModernCannabiseur
Exhaust fan as high up on one side with the intake fans low on the opposing wall; this works with the laws of thermodynamics (hot air rises, cool air sinks) to most effectively replace the hot air inside the greenhouse with the cooler air outside.
railgons
In addition to what the others have said, it might be time to install some shade cloth over the top of it.
t0mt0mt0m
Opposite wall of the intake so you get ventilation across the structure.
nor_cal_woolgrower
I built one of these..it can open on both ends, my fan is on the back. And I have shade cloth.
This photo is from The Everyday Greenhouse, where I got my plans..is this yours?
PutridAd3691
bottom left for intake and top middle for exhaust.
Shade cloth is very effective and not that expensive. I use 40 % blocking.
Freudian_N1P_SLIP
I hang a floor fan from the top of mine above the window in the back. And just leave the front door open.
frntwe
I found a 18” fan rated for a water misting system. It’s mounted about 8 foot up and blows out one of the two screen doors. It’s plugged into thermo controller outlet I have set at 85 degrees. The hot air blows out, cooler air is drawn in the far door. Hoop house is 18’ X 36’. I should add shade cloth for the hottest days
8 Comments
Depending on the budget, I’d just buy two metal box fans and make a breezeway of sorts in there. Both fans mounted to the top on the screen door from the inside, one fan blowing in, one fan blowing out. I use a very similar setup on one of my smaller greenhouses and it works great. A temp control sensor set at 80 will make life easier as well.
Exhaust fan as high up on one side with the intake fans low on the opposing wall; this works with the laws of thermodynamics (hot air rises, cool air sinks) to most effectively replace the hot air inside the greenhouse with the cooler air outside.
In addition to what the others have said, it might be time to install some shade cloth over the top of it.
Opposite wall of the intake so you get ventilation across the structure.
I built one of these..it can open on both ends, my fan is on the back. And I have shade cloth.
This photo is from The Everyday Greenhouse, where I got my plans..is this yours?
bottom left for intake and top middle for exhaust.
Shade cloth is very effective and not that expensive. I use 40 % blocking.
I hang a floor fan from the top of mine above the window in the back. And just leave the front door open.
I found a 18” fan rated for a water misting system. It’s mounted about 8 foot up and blows out one of the two screen doors. It’s plugged into thermo controller outlet I have set at 85 degrees. The hot air blows out, cooler air is drawn in the far door. Hoop house is 18’ X 36’. I should add shade cloth for the hottest days