Propane refrigerator Q's

[Cord]

Does anybody know how hot the exhaust gets on a propane refrigerator? I have a off grid cabin that will have a propane fridge. The fridge has a vent going up the back and it ends inside the cabinet with a grate over the opening. I was thinking of trying to direct this exhaust outside through the cabin wall. I found a nice wall vent but it's pvc. PVC isn't my first choice for material, but just how hot will it get?

 

[Helitech]

The vent on almost all RV'S is made out of plastic.

 

[JPRambo]

My camper only has a flame of about the size of a Bic lighter on highest setting.

 

[Gunny]

Yep, a very low flame, but I'd have at least a short section of metal vent nearest the flame before I transitioned into PVC

 

[Cord]

On the RV fridges, what are they doing for back drafting? The vent that I was looking at is totally open, so even the slightest breeze could result in a back draft.

 

[Raspy]

The RV system is more like an open space with a vent near the top and bottom. Not only the flame heat gets vented, but the heat from the fridge gets vented too. There is not much back draft because the vents are on the same surface of the RV and can be exposed to highway speeds without a problem. They also sometimes install a small 12v fan to help ventilate the space behind the fridge.

The chimney on the flame is really the ammonia heat exchanger/phase change unit and it's temp is not high enough to burn wood. It won't backdraft because it's inside the enclosed space. Getting the waste heat to the outside is the bigger problem.

 

[Zerk]

Can you download a manual on one?

 

[Cord]

Not for this one. It's an old Servel.

 

[Barry 1]

One on Ebay for$29
1933-57 models

 

[orezok]

The boiler on a RV fridge operates at 350 degrees. I dont know what the temp is when exiting the flue, but it's a starting point.