Furnace vent cover - Fiberglass RV


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Old 03-08-2009, 07:55 PM   #1
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Trailer: U-Haul CT
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Hi folks,

I have been lurking for a time. My husband and I are working on a uhaul ct we bought last fall. We are currently replacing all the rusty screws on the marker lights, etc. My husband had a question on if we can use butyl tape as a seal for the furnace vent cover. Is it safe to use in this area where there would be heat? If not what do we use?

Thanks for your help,
Holly



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Old 03-08-2009, 08:08 PM   #2
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Name: Donna D
Trailer: Escape 5.0 TA, 2014
Oregon
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former lurker and now a member! Your question is a valid one. You're dealing with a heat source. We just discussed this topic within the past two months. One of our members, Brandy has (had) several points she needed to seal and one of them just happened to be the furnace vent.

Check this topic for some solutions. If you're looking for an epoxy putty, be sure to see the very last posting. The topic title is deceiving but it will address your question! water problem need solution
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Old 03-09-2009, 10:04 AM   #3
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Name: Brandy
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Hi Holly, I can officially say from my personal experience no buytle. It goes on fine but after using my heater several times I noticed the buytle got soft and sticky like used bubble gum. As I traveled the now sofened buytle would flex allowing water to wick its way in. I went to several fireplace stores and RV stores and seemed to have them stumped over this one. I finally settled on Polyurethane Sealant by Bostik chem calk 900.(recommended by an RV store) It is black and as sticky as tar. Going on it was a pain as it was VERY sticky and when ever you went to wipe it, smeared like tar and ended up having to wipe and wipe and wipe again. I went thru a dozed disposable gloves as well ( I ended up using a damp sponge and a towel that I ended up throwing away). It stays semi flexable, eventually I was able to smooth it and perfect it to what I found acceptable ( I can get you photos if you need). I am happy with the end results HOWEVER In retrospect knowing how sticky the stuff was I would use the epoxy recommended on the post by another member....


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Hi folks,

I have been lurking for a time. My husband and I are working on a uhaul ct we bought last fall. We are currently replacing all the rusty screws on the marker lights, etc. My husband had a question on if we can use butyl tape as a seal for the furnace vent cover. Is it safe to use in this area where there would be heat? If not what do we use?

Thanks for your help,
Holly
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