Greenhouse Cooling

[AHAB]

Will do!
Thanks
AHAB

[DebsC]

I live in Arkansas where it's suppose to be hot and humid in the summer. Since I built my greenhouse, it's been hot but the humidity seems to have disappeared.

My greenhouse does have a high peek of at least 12 feet and this is good in most ways. However, it makes it hard to keep the humidity as high as I'd like.

The more the exhaust fan has to run, the more humidity it sucks out.

I have two windows on the north side and in summer I set a box fan in each. The double doors have a screen, too. This allows the exhaust fan to bring in cooler outside air.

I installed a JayBird Aqua Fogger this winter that is energy efficient and does a good job, too.

Alumanet shade cloth on the inside and cheap Wal*Mart misting system under the benches hooked to an aqua timer, work together to keep the greenhouse relatively cool and moist.

So far it has worked without having to install a swamp cooler.

[jamesgang]

I am building a 16 x 14 GH and the south wall will have at least a 10 x 3 "wet wall --probably go to 12' and I am all over the place as to volume per sq ft ( one site selling pads said half a gal per min per sq ft) and how big a sump tank to install ---years back in a big house I have to install a float valve to refill the "pond" as I lost so much water ---I did figure a little about how many CFM to move thru the house but the trick is too cool it down and not blow out the humidity just get it chilly on one end and just warm on the other...........James