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Greenhouse: Exhaust Fan

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Forum: GreenhouseReplies: 5, Views: 109
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jflc34
Hampton Bays, NY

March 6, 2012
2:11 PM

Post #9032410

I am a new owner of a Rion 8 x 8. I have been learning a lot from all your posts. Greenhouse is heating up to 88 here in zone 7. Am thinking about purchasing an exhaust fan. Any advice where I can get one that you are happy with. I have one automatic roof vent and one automatic window. I have seedlings started and am running a fan 24/7. I am adding a misting system shortly and will add shades this summer if necessary. Should I put the exhaust vent on the north or south side? If you insulate the north wall do you leave it up all summer? Do you think I have enough ventilation. Any advice for this new greenhouse owner would be appreciated. I realize it is difficult to regulate the temperature in a small greenhouse and am already wishing I had gone bigger. I have a small heater that seems to be keeping the greenhouse warm at night, but want to add a thermostat to it.
HollyAnnS
Dover, PA
(Zone 6b)

March 13, 2012
11:52 AM

Post #9041232

I would suggest installing the exhaust fan on the lee side of the prevailing wind it will have less work load, and last longer. You need approx. a 12-14" fan with twice the vent as fan. Your vent and window would be adequate I'd imagine. As to a source check online: Greenhouse Supply, Charley's Greenhouse, etc. Prices will vary a lot as to what you want or need. Some are available prewired with a thermostat and multispeed. Hope this helps a bit. Holly"s Ric
lpaocean
Norfolk, VA

March 17, 2012
1:27 PM

Post #9046229

look at http://littlegreenhouse.com/
just got fan, vent and thermostat from them.
Now to install!
Seems easier to heat a greenhouse than keep it cool.

dreaves

dreaves
Hutto, TX
(Zone 8b)

March 17, 2012
3:45 PM

Post #9046383

I bought a household gable fan with louvers with a thermostat from Amazon.com. It isn't specifically for greenhouses, but has a good area and air-flow for a much better price than a "greenhouse" specific fan. It is working nicely for me.

David
HollyAnnS
Dover, PA
(Zone 6b)

March 17, 2012
5:05 PM

Post #9046494

Looks like they have some reasonable prices. Here's a link to Oldmudhouses blog http://hfgh10x12.blogspot.com/ Page down a bit and there is a section to adding a fan complete with photos. Ric
jflc34
Hampton Bays, NY

March 25, 2012
4:10 PM

Post #9056693

Thanks everyone for your responses. They have all been very helpful. We installed an exhast fan and thermostat and it has really helped.

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