The ad doesn't say what the CFM (cubic feet per minute) is. Computer fans have less than 50 CFM typically. I know from experience two years ago that a couple of these are worthless at BM. A 12v RV ceiling fan has about 700 CFM. I know from experience last year that one of these on medium-high speed works great. This description just doesn't say. Unless you can test one in the store, or get a good spec sheet, I'd avoid it.
Bill
---------- Original Message --------
Subject: Re: [hexayurt] Solar Fan Ventilation
From: Spiral Syzygy <[email protected]>
Date: Sat, July 31, 2010 4:20 pm
To: [email protected]
We tried this the last year we brought out our hexayurt. They don't really work so well. Maybe 4 would help. There seem to be much better options ou there. Another problem is dust accumulates quickly on the solar panel. You have to clean it often. It's a pain on 8' yurt.--On Jul 31, 2010 6:16 PM, "Shannon" <[email protected]> wrote:
Any body try one of these?
http://www.amazon.com/Solar-Roof-vent-Shed-Greenhouse/dp/B001C89GV8/ref=pd_sbs_auto_3
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