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Old 03-29-2019, 10:48 AM   #1
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1988 34.5' Airstream 345
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Rear Furnace Replacement for a 1988 345 LE

Hey guys after extensive troubleshooting my rear bedroom ducted furnace is shot! It's the small unit on the driver's side behind the bathroom under the single closet door in the bedroom.

It's a Duo-Therm MODEL No. 90130.004 PROD No. 9917508.21, but when I google it for a replacement, nothing comes up, and you're better off finding help at Home Depot vs. calling my local Airstream dealer. I called vintage trailer supply but they couldn't find anything off of the model number either.

I'm sure several of you have experienced the same failure and know of an acceptable replacement. Please advise.

Thanks In Advance!
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Old 03-29-2019, 05:01 PM   #2
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Youíre lucky that the Duo-Therm didnít do you in......they were bad from day 1.....had problems with the heat exchanger cracking and carbon monoxide filling the motor home. Look for a small surburban, I have one that I took out of the rear of the 370LE if you are interested, let me know, Regards, Bob
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Old 03-29-2019, 07:35 PM   #3
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1988 34.5' Airstream 345
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Hey bob thanks for the reply and I am interested. Please PM me on how to get ahold of you.
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Old 04-04-2019, 06:19 PM   #4
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1988 34.5' Airstream 345
Columbus , OH
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Quote:
Originally Posted by bobmiller1 View Post
Youíre lucky that the Duo-Therm didnít do you in......they were bad from day 1.....had problems with the heat exchanger cracking and carbon monoxide filling the motor home. Look for a small surburban, I have one that I took out of the rear of the 370LE if you are interested, let me know, Regards, Bob
Here's the proof - this is an image of the Duo-Therm in action in my '88 345LE. A miracle wife and I didn't off ourselves, but it could explain why I'm a bit shy of a full deck. I have a whole new respect for these little combustion chambers!
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