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Wall too hot next to fridge flue vent

moll672
Explorer
Explorer
Found that an area of the panel wall next to fridge vent/flue is getting very warm when fridge runs on propane. As a retired firefighter it is hot enough to make me concerned. Continual heating to a lower than ignition temperature can, over time, cause the ignition temp of a material to be lowered. The process is called pyrolysis. Temp was such that I didn't want to hold my hand on it for more than 2 seconds.
Had a look at flue from back side of fridge and it looks as though there is fibreglass insulation in the area of concern. Thinking that this is the problem by holding in the heat instead of a clear air space all around the flue pipe. Would have to take roof cap off to get at insulation, so not a 5 minute job. However seriously thinking this is the way to go as concerned about temp. Anyone out there come across same problem
2014 Silverado 5.3 Crew Cab
2004 KZ Sportsmen 2253 5th wheel
8 REPLIES 8

Dayle1
Explorer II
Explorer II
My solution was the opposite, I removed the inadequate fiberglas insulation and installed rigid foam board insulation. Two 3/4 inch thick layers, first layer cut to fit tightly between the 3/4 inch framing and second layer even covering the framing. This keeps the heat away from the paneling and creates the best chimney effect to pull air thru the coils and heat out the upper vent. This makes the frig. operate better and keeps the interior of the RV cooler at the same time. Two benefits, but I had to remove the frig. to insulate the entire cabinet, so it is definitely not a 5 min. job.
Larry Day
Texas Baptist Men-Retiree Builders since '01
'13 Silverado 3500HD LT 2wd CCSB SRW, custom RKI bed
'19 Starcraft Telluride 292RLS
Rig Photos

aruba5er
Explorer
Explorer
I too thought my vent was too warm and I took the vent cover off and found insulation and a small hunk of roofing material laying on top of the coils. Good attentive workers. ( Hurry UP da** it, there's another one coming right behind this one) Any chance your refer is in a slide out that has a fan. Your fan may not be working.

Old-Biscuit
Explorer III
Explorer III
Cooling Unit flue should NOT be in contact with any part of fridge opening/compartment.

Flue should be fully insulated and covered in a metal shield with insulation material between it and fridge compartment structure

Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31

Jerrybo66
Explorer
Explorer
I had the same problem, different application. The paneling above the fridge was warmer than I thought it should be so I removed the vent cover on the roof. About a five minute job as I remember.(: When the trailer was built they didn't staple the insulation well enough in the flue and it folded over against the opposite side, cutting off the venting heat. Luckily it wasn't too far down from the roof that I could reach it with a stapler. I hope your fix is this easy...
Support the Country you live in or live in the Country you support
2003 Sierra SP 26'Toy Hauler
1997 F-350, PSD, 4X4, red Crew Cab, long bed.
2007 Arctic Cat Prowler, Arctic Cat 500

pianotuna
Nomad III
Nomad III
Add fans in a mask under the rain cap. If you wish to be fancy, add a thermostat so they will cut in.
Regards, Don
My ride is a 28 foot Class C, 256 watts solar, 556 amp-hours of Telcom jars, 3000 watt Magnum hybrid inverter, Sola Basic Autoformer, Microair Easy Start.

path1
Explorer
Explorer
(Already covered in post above. Faster at key board I guess)

Pull some insulation out from around flue and put a propane torch to it to see how flammable it is, to put yourself at ease.

And I have no idea how leaves get under screen on top of frig roof cap but take a look there also. You'll be surprised.
2003 Majestic 23P... Northwest travel machine
2013 Arctic Fox 25W... Wife "doll house" for longer snowbird trips
2001 "The Mighty Dodge"... tow vehicle for "doll house"

We_Cant_Wait
Explorer
Explorer
There have been numerous post with pics where people have opened up the wall and found badly scorch wood panels in their flue areas. Try and use a flashlight and mirror to see if you can see up in the flue are as to what's going on, or take the flue cap on the roof off and inspect the area that way.

the_bear_II
Explorer
Explorer
Our 20 year old 5th wheel has a compartment above the refrigerator and a pantry area to the right. Both get warm. At first I was concerned but the temp was never more than 100 degrees. 20 years later never a problem.