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01-12-2022, 10:43 AM #1
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Issues with the furnace camping at a wide range of altitudes and temperatures
Hi all
First post for me and this is the first RV for my wife and I. We just bought a Imagine 3100RD. We are moving into our RV to live full time. The RV is going to go back and forth between 10,000 ft and 6000 ft based on where our house is and where I work. We decided to test out the RV right away on our property which is at 10k ft and the furnace stopped staying lit after two days. I drove it back down to the dealership which is at 6k ft and they had no issue getting the furnace to perform properly. I was told by the tech at the dealership and our residential heating technician who also owns an RV that the furnace is likely not getting the correct pressure at this altitude. Has anybody else experienced this and if so does anybody have any ideas on how to compensate for the extreme altitude changes? Thanks in advance.
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01-12-2022, 11:03 AM #2
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Update-The tech found the the regulator was set a little low and has adjusted the pressure. I will picking up the RV sometime soon and we will see if the issue is resolved.
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01-12-2022, 05:42 PM #3
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Nice, please post back your experience
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01-13-2022, 12:19 PM #4
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Good news and bad news. Came out this morning first thing to test fire the furnace and had the same issue as before (furnace would fire and not stay lit). At that time it was 10 degrees out. I came back out a while later when it was almost 30 degrees out and tried again. The furnace sounded better (stayed lit longer for each attempt) and then finally stayed running. I'm wondering now if it is an issue with temperature and not altitude. I've done a bit of research on other forums and websites and what I'm seeing is issues with pressure. Some sources say it could be a bad mixture of propane and additives, others say improper purging of the cylinders when they were filled ie air or water in the tank and some issues with regulators or the wrong size orifice in the furnace. The regulator is new from the dealer and looks to be decent quality. I'm not ready to tear apart the furnace and change the orifice (that would have to be done by the dealer as I don't want to screw up my warranty). I'm waiting on a callback from the dealer to troubleshoot with them. Does anybody have any experience with this and have thoughts on things to try? I've also researched some heated pads for propane tanks but they are expensive and get mixed reviews on reliability. Thanks in advance for the input.
Last edited by mountainrv; 01-13-2022 at 12:23 PM.
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01-13-2022, 12:30 PM #5
Try draping an old sleeping bag over the tanks.
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01-13-2022, 01:02 PM #6
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01-13-2022, 02:27 PM #7
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01-13-2022, 02:42 PM #8
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Are you sure that you are not about out of propane. If so the cold temp will not allow the little left to pressurize until it warms up. In cold weather I can only get 2 to 3 days on a 30lb tank of propane.
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01-13-2022, 03:51 PM #92021 398M Full Body Paint 8k axles. LRH tires. Disc brakes.
Two bathrooms, no waiting 155 fresh, 104 black, 104 grey 1860 watts solar.
800AH BattleBorn Batteries No campgrounds 100% boondocking
2020 Silverado High Country 3500 dually crewcab Duramax Allison
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01-13-2022, 04:09 PM #10
Issues with the furnace camping at a wide range of altitudes and temperatures
Great explanation. Part of the energy lost with the propane under pressure is heat. If you feel the tanks when you have stuff running, the tanks will be cold. In very cold weather, there may be enough heat loss to prevent the propane from going through the regulator. Blankets could make the difference.
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