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Old 12-14-2008, 11:19 PM   #1
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1975 25' Tradewind
Holland , Michigan
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Need bath exhaust info

The bathroom vent in my Tradewind is missing, There is about a 3" hole low in the wall between the toilet and closet. I am assuming it originally came with an in-line exhaust fan in the closet with flexible hose that exhausted out the now patched up floor.

I would like to know what is a suitable size exhaust blower for this application, I do know it needs to be 3" and 12 volts but how many CFM's should it be, should I be concerned with how many amp's it draw's?

Where do I find a round 3" vent cover?

Do I cut a hole in the closet floor where the patch is and vent this to the belly pan, I see no evidence of a exhaust port on the outside.

Anyone have a better solution?

I have searched the forum's but can't find any info on a replacement blower.

Your help is much appreciated.
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Parts needed: Fan for roof vent or whole vent fan assembly, vented catalytic heater.
My blog for the 1975 Tradewind restoration, Has not been updated in a while but I am still working on it.
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Old 12-15-2008, 12:13 AM   #2
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1974 31' Sovereign
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I am not sure, but I do have a 1974 Sovereign that has an exhaust vent and I am going to work on my AS tomorrow. If I can find out what system mine has, I will pass it along to you...
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Old 12-15-2008, 02:54 AM   #3
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1975 25' Tradewind
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That would be much appreciated
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Parts needed: Fan for roof vent or whole vent fan assembly, vented catalytic heater.
My blog for the 1975 Tradewind restoration, Has not been updated in a while but I am still working on it.
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Old 12-15-2008, 09:22 AM   #4
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1993 21' Sovereign
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What was there was a small squirrel-cage motor, with a plated steel intake grill, a 3" flexible reinforced hose going through the hole in the floor to an aluminum outlet in the belly pan. As soon as it stops raining here, I can snap a photo of it for you.
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Old 12-16-2008, 06:14 AM   #5
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Picture from the service manual:
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Old 12-16-2008, 10:01 AM   #6
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1975 23' Safari
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Richard, Great pic. Does anyone know where the switch is for the fan? I assumed the vent was just a vent but can't seem to see any place for a switch in my 75' Safari.
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Old 12-16-2008, 01:15 PM   #7
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My 73 overlander used that vent,mine went out and I replaced it with a bilge exhaust fan left over from a boat,maybe not original ,but it works.Can`t remember where switch is at,and that trailer is in Ohio. Dave
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Old 12-16-2008, 07:39 PM   #8
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1975 27' Overlander
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We have a 75 Overlander and the switch for the bath fan is on the cabinet above the fan opening. It is a rotary type switch that you turn and it clicks on turn again and it turns off. It should be easy to find a switch that will work. I would send a photo but the AS is in storage for the winter. Good Luck.
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Old 12-16-2008, 07:50 PM   #9
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I have the same switch on my 75 Trade Wind. It is mounted through the wall next to the vent.
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Old 12-18-2008, 11:18 AM   #10
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Hmmm... never noticed a switch there, I'll have to brave the snow and take a peek.
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Old 12-18-2008, 09:13 PM   #11
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Sure enough, there is a small round rotary switch forward of the bath fan inlet... and in my case, it even works.

Thanks Richard, I completely missed the switch, but live and learn.
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Old 01-06-2009, 02:08 PM   #12
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1975 25' Tradewind
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Can anyone tell me, is there suppose to be duct work between the floor and the belly pan?
The PO repaired the floor in the closet and covered the hole for the vent and I can see about a 3" hole in the rear street side corner of the belly pan, I assume that is for the bath vent.
I bought a flange mount blower similar to the one in post #5, I am going to cut a 3" in the floor of the closet and mount the blower over the hole and duct it to the vent.
Anyone see a problem whit this?
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Parts needed: Fan for roof vent or whole vent fan assembly, vented catalytic heater.
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Old 01-07-2009, 08:08 AM   #13
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Quote:
Originally Posted by easyride View Post
My 73 overlander used that vent,mine went out and I replaced it with a bilge exhaust fan left over from a boat,maybe not original ,but it works.Can`t remember where switch is at,and that trailer is in Ohio. Dave
Mine had a flex pipe about 2" i.d.,Which was unraveling,I cut a piece of 2"
pvc connected to exhaust fan and ran thru floor.Yes it originally came with vent thru floor. Dave
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Old 01-07-2009, 08:37 AM   #14
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Quote:
Originally Posted by bmklawt View Post
Can anyone tell me, is there suppose to be duct work between the floor and the belly pan?
I don't believe there is, Bruce. I had my Safari apart to repaint the frame and reseal some leaks. This is how I found it. The duct terminates at floor level. There is an opening in the belly pan below covered in hardware cloth.
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