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Old 04-17-2010, 11:06 AM   #1
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Tootie, toot. Exaust fan replacement.

I am replacing the 70's original water heater bath cabinet with a custom cabinet. The original exhaust fan is dead and I need suggestions on a replacement that is fairly small and cabinet mounted. Any suggestions? Thanks all!
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Old 04-17-2010, 12:58 PM   #2
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The fan in my 73 is underwhelming in performance, I can't imagine what they were thinking! The original resembles a 'Bilge' fan - there are many newer style in-line 12VDC bilge fans on eBay with a 3 and 4 inch round flex duct set-up...
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Old 04-17-2010, 08:54 PM   #3
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Hiya!

I dunno if they are powerful enough, but those "muffin" style computer fans are sure a good price, and most of them are purty quiet too. I wonder if you could use the same cover. I'm assuming it's like mine, a sorta chrome ring with a silvery screen innit.

Unless mebbe you WANT to have a noisy fan in there...
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Old 04-17-2010, 09:19 PM   #4
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The fan in my 73 is underwhelming in performance, I can't imagine what they were thinking! The original resembles a 'Bilge' fan - there are many newer style in-line 12VDC bilge fans on eBay with a 3 and 4 inch round flex duct set-up...
That "exhaust fan" was designed to remove the bathroom odors, QUICKLY.

Everthing Airstream ever did, has a reason, "usually".

Andy
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Old 04-17-2010, 09:52 PM   #5
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Argh, two points for the pun? "Muffin" fans can't stand back pressure so no handling any back drafts from weather or restrictive duct work, etc. If you want extreme flow from the existing set up go with a remote mount inline 120VAC bathroom fan - a premium top of the line product...

And a two-inch wide two-inch diameter squirrel cage fan spun up by a slower 12VDC motor with a intake screen and duct work doesn't move anything fast - but in a closed trailer it might keep someones on-the-pot Chesterfield or Pall-Mall from smoking up the Loo when the interior door is closed...
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Old 04-17-2010, 10:23 PM   #6
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Computer muffin fans are not all the same; they range in performance from under 30 cfm to over 200 cfm, w/ current draws to match.

Something like this should take care of things...

These aren't designed for heavily condensing environments; if you're fond of protracted hot showers, you may find you need to replace 'em once in a while... but at $10 apiece, that's manageable.

Some people like noisy fans in the bathroom; this one is prob. loud for a computer fan, but quiet compared to a stock fan.

I'm thinking about making a better kitchen exhaust fan w/ two of these....

- Bart
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Old 04-17-2010, 11:22 PM   #7
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I'm thinking about making a better kitchen exhaust fan w/ two of these....

- Bart
If you replace the kitchen fan please post pics, the fan is way too loud in ours.

Thanks,

Leslie
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Old 04-18-2010, 06:09 AM   #8
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Might work for you:

Item # M-5490, Fan on Orr & Orr, Inc.

And there's this style out there you could adapt with a flex duct:

http://cgi.ebay.com/ebaymotors/MARIN...ssoriesQ5fGear
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Old 04-18-2010, 10:01 AM   #9
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All good ideas...
Barts, Id like to see a kitchen exhaust fan too.
Ganglin, that is the type I removed from my 70. I had no idea they were still made. I searched everything I knew and found nothing like the original. Thanks for the links and the thoughts.
If anyone has any ideas for a kitchen exhaust fan, Leslie and I need ideas.
That said, I am not replacing the kitchen bulkhead. What I need is simple round exhaust fan for the 6" hole that was left after demolition. You know, "like back in the day" when they just had a metal pull chain with small motor and a flap.
THANKS ALL!! Cynthia
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Old 04-18-2010, 11:43 AM   #10
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Thanks for the ideas. Ours is the original fan in the exhaust hood, (a newer trailer). If it would be possible to just reduce the speed it might be enough to reduce the noise. I really hate the noise, you can't even carry on a conversation in the trailer when that thing is running.
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Old 04-18-2010, 12:10 PM   #11
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Thanks for the ideas. Ours is the original fan in the exhaust hood, (a newer trailer). If it would be possible to just reduce the speed it might be enough to reduce the noise. I really hate the noise, you can't even carry on a conversation in the trailer when that thing is running.
This should do what you want... (I've never dealt w/ these folks, though). There are also lots of inexpensive kits to do this out there if you know someone who is handy w/ a soldering iron.

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Old 04-18-2010, 12:11 PM   #12
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All good ideas...
...

What I need is simple round exhaust fan for the 6" hole that was left after demolition. You know, "like back in the day" when they just had a metal pull chain with small motor and a flap.
THANKS ALL!! Cynthia
Vintage Trailer Supply has one like that (RV Sidewall Exhaust Fan), but there is one difference. They are 11½" rather than 6". I've never seen one that small with the pull chain and flap.

In my Excella, I have a Ventline (Ventline Van Vent - Powered 65734 - $67.95 : ODMRV , Out-of-Doors Mart) that fits in a 6" to 6½" opening.
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Old 04-18-2010, 08:46 PM   #13
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All good ideas...
Barts, Id like to see a kitchen exhaust fan too.
Ganglin, that is the type I removed from my 70. I had no idea they were still made. I searched everything I knew and found nothing like the original. Thanks for the links and the thoughts.
If anyone has any ideas for a kitchen exhaust fan, Leslie and I need ideas.
That said, I am not replacing the kitchen bulkhead. What I need is simple round exhaust fan for the 6" hole that was left after demolition. You know, "like back in the day" when they just had a metal pull chain with small motor and a flap.
THANKS ALL!! Cynthia
What parts do you need? Are you down to an open hole and need the entire set up (interior/exterior covers) or would a replacement motor and fan blade work? It's 6 not 6 1/2?
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Old 04-19-2010, 09:53 AM   #14
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Quote:
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What parts do you need? Are you down to an open hole and need the entire set up (interior/exterior covers) or would a replacement motor and fan blade work? It's 6 not 6 1/2?
Im down to just a hole in the ceiling in the kitchen. No original parts saved. Need the entire setup. The hole measures 5 1/4" ID.
Thank You. Cynthia
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