Reply
 
Thread Tools Search this Thread Display Modes
 
Old 06-17-2011, 03:20 PM   #1
3 Rivet Member
 
aircampr's Avatar
 
2015 23' International
Lake Forest Park , Washington
Join Date: Nov 2010
Posts: 122
Images: 21
A Quieter Galley Fan?

Has anyone replaced their galley fan with a much quieter unit?

We are just starting to enjoy our 2007 19' Safari SE Bambi. It is a class act in almost every way, except the Galley Fan is uncomfortably loud. We are looking to replace it with something much quieter.

Charlie
__________________

__________________
aircampr is offline   Reply With Quote
Old 06-17-2011, 03:34 PM   #2
Rivet Master
 
Silver Goose's Avatar
 
2008 27' Classic FB
Burkburnett , Texas
Join Date: Jul 2010
Posts: 955
I've never thought the vent hood fans to be terribly effective but the one on my previous trailer was particularly loud. I put a 10 ohm (best as I can recall) resistor in series with the motor. That tamed the beast, but as the motor ran slower, it was even less effective. It still pushed the flapper door wide open so it was moving air... If making a pot of spaghetti, I've found the Fantastic Fan in the ceiling accompanied by an open window to be the most effective solution.
__________________

__________________
AIR 47751
Air Safe Hitch, Reese Dual Cam 800#, Centramatics
Silver Goose is offline   Reply With Quote
Old 06-17-2011, 04:08 PM   #3
Rivet Master
Airstream Dealer
 
Inland RV Center, In's Avatar
 
Corona , California
Join Date: Feb 2002
Posts: 16,499
Images: 1
Quote:
Originally Posted by aircampr View Post
Has anyone replaced their galley fan with a much quieter unit?

We are just starting to enjoy our 2007 19' Safari SE Bambi. It is a class act in almost every way, except the Galley Fan is uncomfortably loud. We are looking to replace it with something much quieter.

Charlie
Older Airstreams used a switch for the ceiling vent fan motors.

It was a 2 way switch, with a center off.

Flipping the switch to one side, applied the full battery voltage to the motor. Flipping the switch to the other side, applied the battery voltage though a 10 watt, one ohm resistor.

That made the fan run slower and quieter, but if you wanted it at full speed, all you had to do was flip the switch.

Agani, the center position of the switch, was the "OFF" position.

A switch could easily be installed on later models, just make sure that the resistor does not touch anything, as it does get pretty warm.

Andy
__________________
Inland RV Center, In is offline   Reply With Quote
Old 06-17-2011, 04:35 PM   #4
Rivet Master
 
Silver Goose's Avatar
 
2008 27' Classic FB
Burkburnett , Texas
Join Date: Jul 2010
Posts: 955
The OP indicated he had an '07. My '08 came equipped with the center off, 2 speed motor switch, so his might also but he didn't say. You jogged my memory, that may have been a 1 ohm, 10 watt resistor I added. It was also a 2-speed model so I had low and very low, but it was quiet!
__________________
AIR 47751
Air Safe Hitch, Reese Dual Cam 800#, Centramatics
Silver Goose is offline   Reply With Quote
Old 06-17-2011, 05:09 PM   #5
Lost in America
 
mojo's Avatar
 
2015 27' FB International
2006 25' Safari FB SE
2004 19' International CCD
Oak Creek , Arizona
Join Date: Feb 2007
Posts: 1,506
Go to Radio Shack and by a 12V rheostat and knob. Take off the cover plate over the fan/light switches and drill a hole to mount rheostat. Connect wires and you have a variable speed fan.
__________________
This is the strangest life I've ever known - J. Morrison

The Nest Egg - 2015 Airstream International Serenity 27FB
Silverado 2500HD Chevy Duramax Diesel

mojo is online now   Reply With Quote
Old 06-17-2011, 05:33 PM   #6
Rivet Master
 
Melody Ranch's Avatar
 
1956 22' Flying Cloud
1953 32' Liner
1955 22' Safari
Valley View , Texas
Join Date: Jan 2006
Posts: 3,960
Images: 78
Send a message via Skype™ to Melody Ranch
from the Restoration Rally

I was shown a kitchen fan that was replaced with an off the shelf computer cooling fan. Fit right in and was it quiet and powerful.
__________________
"If it can't be reduced, reused, repaired, rebuilt, refurbished, refinished, resold, recycled or composted
then it should be restricted, redesigned or removed from production."
Melody Ranch is offline   Reply With Quote
Old 06-17-2011, 07:16 PM   #7
3 Rivet Member
 
aircampr's Avatar
 
2015 23' International
Lake Forest Park , Washington
Join Date: Nov 2010
Posts: 122
Images: 21
OK. SOme good ideas here. We have a one speed fan in our '07, but it would be great to have two speeds. i will play with a new switch and resistor for low speed option. If that is not satisfactory, then begins the search for a fan replacement.

Also I would like to rig an inside means to lock and unlock the fan flapper door. At this stage I am always forgetting to attend to that, and discover at inconvenient times. (Boiling water for coffee in the morning, before being dressed for the nieghbors... and realizing the vent is still latched on the outside!)

Thanks for the good suggestions. I will post further findings later.


Cheers,

Charlie
__________________
aircampr is offline   Reply With Quote
Old 06-17-2011, 07:27 PM   #8
CLOUDSPLITTER "Tahawas"
 
ROBERT CROSS's Avatar

 
2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
Posts: 11,153
Images: 1
Quote:
Originally Posted by aircampr View Post
Has anyone replaced their galley fan with a much quieter unit?

We are just starting to enjoy our 2007 19' Safari SE Bambi. It is a class act in almost every way, except the Galley Fan is uncomfortably loud. We are looking to replace it with something much quieter.

Charlie
Felt the same way at first....then realized that the most use came in the morning while making breakfast, coffee brewing..... too tired to notice, bacon crackling... too loud to hear it, meal ready....too frustrated trying to wake DW!

What Fan..

But after awhile it became obvious that it didn't do much even on high, so we just up the speed on the FV fans and live with it.
__________________
PFC.....

“After all these years the reason I continue to love Thanksgiving.....I still sit at the kids table.”
RLC

Sandra wanted to go to Cleveland on vacation,
but I’m the Husband, so we went to Cleveland.
RLC
ROBERT CROSS is offline   Reply With Quote
Old 06-17-2011, 07:45 PM   #9
Rivet Master
 
Silver Goose's Avatar
 
2008 27' Classic FB
Burkburnett , Texas
Join Date: Jul 2010
Posts: 955
Quote:
Originally Posted by aircampr
...

Also I would like to rig an inside means to lock and unlock the fan flapper door. At this stage I am always forgetting to attend to that, and discover at inconvenient times. (Boiling water for coffee in the morning, before being dressed for the nieghbors... and realizing the vent is still latched on the outside!)
...
Charlie
Or it's unlatched and the wind picks up in the middle of the night, and you're awaken to a flap-tap-ratta-tap-flap! The more I think about this, the more I appreciate the Fantastic Fan.
__________________
AIR 47751
Air Safe Hitch, Reese Dual Cam 800#, Centramatics
Silver Goose is offline   Reply With Quote
Old 06-17-2011, 08:32 PM   #10
CLOUDSPLITTER "Tahawas"
 
ROBERT CROSS's Avatar

 
2003 25' Classic
Zanadude Nebula , WNY
Join Date: Jun 2007
Posts: 11,153
Images: 1
These don't flap...MUCH

There is no latch, so nothing to remember.

???Some AS no 2 speed switch???
Attached Thumbnails
Click image for larger version

Name:	STAINLESS UP-GRADES 006.jpg
Views:	86
Size:	31.2 KB
ID:	132684  
__________________
PFC.....

“After all these years the reason I continue to love Thanksgiving.....I still sit at the kids table.”
RLC

Sandra wanted to go to Cleveland on vacation,
but I’m the Husband, so we went to Cleveland.
RLC
ROBERT CROSS is offline   Reply With Quote
Old 06-17-2011, 08:36 PM   #11
Rivet Master
 
Wayne&Sam's Avatar
 
2014 25' Flying Cloud
Cuddebackville , New York
Join Date: May 2007
Posts: 3,099
Images: 21
I put a 10 ohm 10 watt resistor on the switch and it makes the fan much quieter but still has enough umph to open the flap. Anything more that 10 ohms and the flap won't open. $2.
__________________
2014 25' Flying Cloud Rear Twin
2012 Dodge Durango Hemi/AWD
Wayne&Sam is offline   Reply With Quote
Old 06-19-2011, 03:23 PM   #12
3 Rivet Member
 
aircampr's Avatar
 
2015 23' International
Lake Forest Park , Washington
Join Date: Nov 2010
Posts: 122
Images: 21
OK, I have experimented with using power resistors in series with the switch on the stock fan in our '07 19 ft Safari/Bambi SE. With each of several resistance values:
- I measured the noise level with a sound level meter at three locations;
- I noted the opening of the flapper door (which is pictured in Robert Cross's post above).
- I made a qualitative assessment of the ventilation with a teapot boiling on the left rear burner (on max heat).

Sound levels, in dB A-weighted, were recorded at: 1) the galley, 2) the dinette, 3) the aft bed near pillows. The dB levels may not be absolutely correct, but relative differences are meaningful:

Location= Galley Dinette Bed Flap%Open Ventilation
Fan Off 39dB 39dB 39dB 0% none
14 Ohms 70dB 55dB 48dB 50% inadequate
8 Ohms 74dB 58dB 50dB 66% doubtful
5.5 Ohms 76dB 62dB 52dB 75% maybe OK
No Ohms 88dB 70dB 58dB 100% OK
(stock)
FantstcFan 47dB 48dB 43dB -- --

My conclusions:
1) The stock Phillips fan is a very noisey design and should be upgraded (maybe has been?) in future airstreams. It generates very much more noise than a fantastic fan at lower flow rates (than the FF).
2) One could easily and inexpensively install a switch under the hood to provide two speeds, where the low speed uses about a 5 Ohm resistor. This noticeably reduces sound levels with perhaps acceptable reduction in ventilation flow (in limited circumstances - like bring water to boil for coffee). Any resistance greater than this in my opinion would necessitate additional ventilation from ceiling vents or open window(s).
3) I have ordered a couple of 4-3/4" dia computer fans, since I desire MUCH lower noise levels than can be achieved with a series resistor on existing fan.

I will report how this works out in a week or so.

Cheers,
Charlie
__________________
aircampr is offline   Reply With Quote
Old 06-19-2011, 05:01 PM   #13
Rivet Master
 
Silver Goose's Avatar
 
2008 27' Classic FB
Burkburnett , Texas
Join Date: Jul 2010
Posts: 955
I can tell you're serious about this... I just took my dB meter out there and checked mine.

With the meter on the burner cover

Fan off 50dB
Fan low 68dB Flap 50% open
Fan high 76dB Flap 100%

The vent hood in mine is a Ventline made by Dexter. It has the 2 speed blower. I use the light as a night light more than I use the vent hood. As stated earlier, the FV on the ceiling seems much more efficient. Maybe we can encourage Fantastic to get into the vent hood business!
__________________
AIR 47751
Air Safe Hitch, Reese Dual Cam 800#, Centramatics
Silver Goose is offline   Reply With Quote
Old 06-19-2011, 05:37 PM   #14
3 Rivet Member
 
aircampr's Avatar
 
2015 23' International
Lake Forest Park , Washington
Join Date: Nov 2010
Posts: 122
Images: 21
Thanks YankeeDoodle. I suspect they must be using a nicer (quieter) fan in the Classic.
__________________

__________________
aircampr is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Parallax Power Supply Fan Noise Bluto Batteries, Univolts, Converters & Inverters 9 09-30-2012 10:21 AM
Fan Motor Okiegent Roof Vents, Skylights & Fans 19 05-15-2011 12:58 PM
Need help, Kool O Matic exhaust fan destroyed frankfarmer Roof Vents, Skylights & Fans 2 05-06-2011 06:34 AM
Bedroom ceiling fan switch? seacure 1987 - 1989 Excella 1 04-30-2011 05:45 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:46 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.