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05-03-2016, 10:41 PM
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#1
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Junior Member
Join Date: Dec 2015
Location: Minneapolis
Posts: 26
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Furnace couldn't keep up - 368rlbhk
We spent the first night in our brand new Hemisphere 368rlbhk this past weekend. Overnight the temp dropped to the low 40's / high 30's in northern WI and the furnace ran all night. With the thermostat set at 67 the actual temp never got over 64 causing it to run all night. This is my first RV that couldn't keep up with 40 degree temps. Do I take it out of our seasonal site and have the dealer look into it or is that normal for a large unit like this? The furnace is a 35k btu so that should be plenty right? I even optioned the unit with the extended season package when custom ordering it. Thanks in advance.
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05-09-2016, 03:27 PM
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#2
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Junior Member
Join Date: Dec 2015
Location: Minneapolis
Posts: 26
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Stayed two more nights in the camper this past weekend. Overnight lows in the low 50's and the furnace ran all night both nights and only caught up once. Something must be wrong. I don't think there is enough air flow from the blower fan.
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05-09-2016, 03:31 PM
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#3
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Site Team
Join Date: Oct 2014
Posts: 15,243
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Pull the inside panel to get access to the air box inside the RV. Check to insure that the ducts are hooked up and than none of the duct ports on the air box are open with no duct. Your furnace should be able to keep up at those temps. If the air flow was too low, the furnace would shut down due to over heat. If the ducts are not connected properly, you cold have a nice warm underbelly, but cool living area.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
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Honda 2000I + Companion
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05-09-2016, 08:51 PM
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#4
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Senior Member
Join Date: May 2014
Location: Waterloo Region
Posts: 729
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I concur with FlyBob (but was more wordy when discussing the same issue here)
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2015 Rockwood Signature UltraLite 8282WS Platinum, GY Marathon LRD, TST 507RV TPMS
2005 GMC 2500HD CCSB D/A, Curt E16, Prodigy P2, Garmin RV760LMT w/BC-20 b/u cam
Self restraint is for the young. I'm old and want it NOW!
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05-09-2016, 09:17 PM
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#5
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Senior Member
Join Date: Jan 2016
Location: Carlisle, Arkansas
Posts: 1,387
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That's why they sell those electric heaters at WalMart
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2005 Cedar Creek 30RLBS/TrailAir Hitch/ MORryde 7K IS/Disc Brakes/ PI PT-50 EMS/ RV Flex Armor Roof
2015 RAM 3500 DRW 6.7 Cummins 3.42/ Garmin 760RV
40 Gal TransferFlow fuel tank/ TST 507
Amateur Radio W5CI 2019 Days Camping 25
2020 Days Camping 7
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05-09-2016, 09:22 PM
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#6
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Senior Member
Join Date: Jun 2015
Location: Pensacola, FL
Posts: 1,645
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+1 on something wrong. 35K BTU should be good for 20-25 degrees.
__________________
2019 Coachmen Freedom Express 192RBS
2015 T12RBST Flagstaff Hardside
Disclaimer: The actual value of my "Two Cents" of advice varies just like a bitcoin.
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05-09-2016, 09:26 PM
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#7
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Junior Member
Join Date: Dec 2015
Location: Minneapolis
Posts: 26
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Quote:
Originally Posted by Flybob
Pull the inside panel to get access to the air box inside the RV. Check to insure that the ducts are hooked up and than none of the duct ports on the air box are open with no duct. Your furnace should be able to keep up at those temps. If the air flow was too low, the furnace would shut down due to over heat. If the ducts are not connected properly, you cold have a nice warm underbelly, but cool living area.
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My suspicion is either the main trunk / trunks are kinked or loose causing all the air just to recirculate. The furnace is in the pass through area so I will have to remove the wall to start the investigation. I am hoping it's not a problem under the lower body cover somewhere. I don't feel like opening that can of worms. I know the "handy" work of the sloppy assembly technicans is going to drive me insane when I start looking around under there.
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05-10-2016, 08:16 PM
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#8
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Junior Member
Join Date: Dec 2015
Location: Minneapolis
Posts: 26
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Well there is at least part of the problem. The factory assembly ding-dongs kinked 3 out of 4 ducts. They ran a water line right through one of them... Idiots.
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05-10-2016, 08:45 PM
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#9
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Senior Member
Join Date: Feb 2013
Location: Chagrin Falls, Ohio
Posts: 3,225
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Quote:
Originally Posted by AudiOnly101
Well there is at least part of the problem. The factory assembly ding-dongs kinked 3 out of 4 ducts. They ran a water line right through one of them... Idiots.
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. They ran the water lines through the duct or just enough to collapse it?
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2017 Salem Villa Estate 395RET-
2011 Coachmen Freedom Express 295RLDS- Sold
2015 F-250 FX4
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05-10-2016, 11:22 PM
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#10
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Senior Member
Join Date: Oct 2015
Posts: 1,502
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On my last camper, one of the duct lines was cut too short and never connected to the heater. I bought the camper used and it had been that way for 5 years.
Love the pic of the crushed lines. Gotta love the quality of a Goshen build.
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05-11-2016, 06:21 AM
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#11
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Senior Member
Join Date: Jan 2015
Location: Englewood FL
Posts: 2,797
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Quote:
Originally Posted by AudiOnly101
Well there is at least part of the problem. The factory assembly ding-dongs kinked 3 out of 4 ducts. They ran a water line right through one of them... Idiots.
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I have seen numerous posts regarding build quality on this forum but nothing to match your photo of how they ran your water lines. This is not a quality issue it is a training and management issue. There is no way that a factory assembler should ever even think of doing that and I believe that the factory needs to be shown this installation and they need to take some serious action. We have seen poorly installed fixtures and jagged holes, but this shows a reckless abandonment of any quality procedures.
Of course they need to fix it as well.
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2015 335DS
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05-11-2016, 06:53 AM
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#12
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Site Team
Join Date: Oct 2014
Posts: 15,243
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If you have a heated underbelly, and one of the airbox vents goes to the underbelly. and the other vents are blocked or restricted, most of the heated air will be going to the underbelly. I found the duct to my rear heat vent crushed ( similar to yours) when the electrical installer stretched some Romex over it to get to an outlet.
Saw on a news report a week ago where POTUS visited an RV manufacturer ( not FR) where they said they were pumping out a new unit every 15 mns.
__________________
2015 Freedom Express 248RBS
TV 2015 Silverado HD2500 Duramax
TST Tire Monitors
Honda 2000I + Companion
2 100W solar panels
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