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Old 05-13-2013
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12v Fans......?

All,
tried two searches IRT "fans" and came up with no results in Gear&Mx or Crusiing/Liveaboards?

Last fall I grabbed a 12v clip on RV type fan from Wal-Mart and put it in the kitchen over the stove. Truth be told it is a noisy rattle box POS from China. Can anyone recommend a 12 volt fan for the bedrooms? As we return to the states I am building a list of summer must-haves for the east coast and fans for the rear cabin are big on my list. Would like 12v, quite, and good volume of air. Any recommendations? I was on amazon and there was a myriad of low cost items with the plug for the cigarette lighter (yes I could cut that of course) but was hoping for fans made for boats or RVs.

please help

Hank
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Old 05-13-2013
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Re: 12v Fans......?

last time I was in Westmarine they had a nice collection of 12v fans. I imagine defender and the rest probably have similar fans for sale
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Old 05-13-2013
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Re: 12v Fans......?

General recommendations seem to be for Caframo and Hella as for being quiet. There are a couple that are made by cruisers. Most of them seem to be larger computer fans (12 volt) that have a "teak" frame built around them, or some other frame/mounting mechanism. I think I would pick of one of the Caframo or hella's and perhaps stop by a computer shop to see if they have some inexpensive fans, that way you can play with the computer fans to see if you can mount them in a useful way. some of them have speed controls that can be wired into them.
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Old 05-13-2013
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Re: 12v Fans......?

I had 2-speed Hella fans on my previous boats and now have 3-speed Caframo fans and can heartily recommend the latter, they are excellent quality, low power drain and even lower noise factor.
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Old 05-13-2013
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Re: 12v Fans......?

These are nice: I draw way less power (like 1/10th the power) since I switched to them.

Caframo Bora Model 748 White 12 Volt Marine Fan : Amazon.com : Automotive Caframo Bora Model 748 White 12 Volt Marine Fan : Amazon.com : Automotive


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Old 05-13-2013
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Re: 12v Fans......?

Those are the exact fans I have, the "Bora". But 10x less power compared to what, a 5-foot-diameter bladed shop fan? Seriously, unless they use some magical new technology, good fans versus run-of-the-mill fans will not show an order of magnitude difference in power consumption; it is a matter of physics to compute the energy needed to move a given volume or air a given speed or distance, so differences are going to be in fan shape and DC-drive efficiency and those are pretty old technologies where I'd be surprised to see a revolution.
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Re: 12v Fans......?

Quote:
Originally Posted by Zanshin View Post
Those are the exact fans I have, the "Bora". But 10x less power compared to what, a 5-foot-diameter bladed shop fan? Seriously, unless they use some magical new technology, good fans versus run-of-the-mill fans will not show an order of magnitude difference in power consumption; it is a matter of physics to compute the energy needed to move a given volume or air a given speed or distance, so differences are going to be in fan shape and DC-drive efficiency and those are pretty old technologies where I'd be surprised to see a revolution.
I had a couple noisy old fans from the mid-1980's Arnd - you know the kind with the metal cages around them . . .. Good riddance!
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Re: 12v Fans......?

OK, now I believe the 10x more efficient claim
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Last edited by Zanshin; 05-13-2013 at 07:32 PM. Reason: learned how to correctly spell the word "believe"
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Old 05-13-2013
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Re: 12v Fans......?

I've got a couple of 12v fans I picked up from West Marine a few years back. They have re-chargeable batteries so you have a choice of batteries or house bank.

They're not super quiet, but I find that to be a plus. The white noise from the fans tends to block out background noise from the marina if we're sleeping at the dock.
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Re: 12v Fans......?

My vote goes for the Caframo Sirocco Model 807 as it moves a lot of air and has been trouble free for 3 years now.

I also have two Caframo Bora Model 748 and they don't move any where near as much air so I ended up using the Bora in the forward berth where I don't like a lot of air movement when I'm sleeping and don't need it.

S/V Keith, 1978 Rafiki 37 ft cutter.
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