Since I have many of the 3" computer fans lying about I decided to finally test one in my boat for heat circulation. They only draw .07 amps which is great. By installing one of these fans with air blowing down it does effectively circulate internal air throughout the cabin. High temp buildup was apparent near the overhead without the fan on, but, it dissipated quickly when fan was turned on. Any non fan heaters like a Mr Heater will work much more effectively with use of one of these fans. In my case it mounts beautifully right under the galley shelf behind the 1 burner stove top. Hope this helps some of you, Happy Thanksgiving! Chief
effective low amp fan for heat circulation
- Thread starter Chief RA
- Start date
Another use for these small computer fans
This is a 2" diameter fan that I cut to fit inside of a 2" PVC elbow. Connected to a vertical tube it pulls cold air from the bottom of my refrigerator and blows it across to the opposite side.
Very effective in promoting a uniform box temperature.
This is a 2" diameter fan that I cut to fit inside of a 2" PVC elbow. Connected to a vertical tube it pulls cold air from the bottom of my refrigerator and blows it across to the opposite side.
Very effective in promoting a uniform box temperature.
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I tried using a computer fan a couple of years ago keep the air from getting stale on hot days when I wasn't around. What I found was that the only air that moved was in the very immediate vicinity of the fan. I didn't notice much of a difference and that was on a small 27 footer.
Bruce- Yes a 12V fan. Power taken from the 12V input to the compressor unit and the very small power wires routed along the refrigerant lines. It runs 24/7 when the refrigerator is powered up.
I originally tried the camper style fan to see if it would work. My design works much better because it pulls cold air from the bottom and shoots it across the top of the box to the opposite corner.
you can do the exact same thing but on a little bigger scale (larger tube and fan), to take the hot air from above the heating source and blow it outward down onto the floor.. a very efficient way the get the hottest air at the top down to the cold floor in the quickest amount of time...
the same method is designed into some homes with open lofts or high vaulted ceilings.
weanie: you need to install your fan better. The computer fans displace a lot of air for their size and frugal amp use. Chief