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orchid house fans
I used box fans for years because they were cheap and easily replaced.
Suspending them from the ceiling or just above the plants or near the heater was a pain, but they were cheap. In refitting my greenhouse last year with twin wall polycarb, new exhaust fans, etc, I decided to throw in some HAF fans. Attached to the ceiling and hanging down about 1' by a sturdy bracket, the fans made a tremendous difference in circulation. I use 4 in a 2000sq' greenhouse. The pitch of the blade and size of the motor make the difference. They are excellent for circulating heat in winter and dissipating it in summer. In our heat we have to have cooling pads and large exhaust fans for the heat of the day, but at night or morning you can't beat those HAF fans (except in price - they're not cheap!). "bb" wrote in message ... Ok, the orchid house is just about done. Last roof panel finally went up yesterday after being on back order for two weeks. Floors were sealed and stained semi-transparent white. I had figured to get the floors done in two to three hours last Sunday and ended up spending a full ten hours on it. The thermometer on the wall was reading 98 most of the day. Anyway, I'm down to installing the screen on three walls. Today when I stopped home for lunch the old wall thermom was reading 94. I think my next priority is going to be installing fans for ventilation. Anyone have suggestions? I figured on going with a couple of outdoor ceiling fans, but another orchid house owner said he gets much better results with floor fans. What does everyone use, and what are the results? Thanks for any help. bb |
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