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11-13-2022, 02:24 PM
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#21
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,447
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OP signed off the forum an hour after posting his question. Not much point trying to help someone who asks and leaves. Hope he comes back as a lot was covered since the first post.
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wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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11-14-2022, 06:45 AM
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#22
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Member
Join Date: Oct 2022
Location: Canada
Posts: 70
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thanks everyone for the attention and thoughts. Did some testing running the fridge only on 12v only and wow I was not impressed with the amp draw. 36amps. I know there is conversions 12v compressor kits but the amount of times I will haul in these conditions are once a year. So the price factor was not interesting.
I will take take note of the tunnels along the 81 to 95 from Ontario and make sure I will turn off the valves before entering.
thanks
sean
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Cougar 30Rls
Gmc 3500 Denali '14
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11-14-2022, 09:53 AM
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#23
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,447
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Quote:
Originally Posted by seanrmz
thanks everyone for the attention and thoughts. Did some testing running the fridge only on 12v only and wow I was not impressed with the amp draw. 36amps. I know there is conversions 12v compressor kits but the amount of times I will haul in these conditions are once a year. So the price factor was not interesting.
I will take take note of the tunnels along the 81 to 95 from Ontario and make sure I will turn off the valves before entering.
thanks
sean
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Sean, clarify please whether this is a gas/electric (120VAC) refrigerator or a 12V refrigerator. Mine is gas/electric (120VAC) and the amp draw on my entire camper running the refrigerator on AC is only 6-7 amps per my Progressive EMS.
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wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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11-14-2022, 12:54 PM
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#24
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Member
Join Date: Oct 2022
Location: Canada
Posts: 70
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Quote:
Originally Posted by wiredgeorge
Sean, clarify please whether this is a gas/electric (120VAC) refrigerator or a 12V refrigerator. Mine is gas/electric (120VAC) and the amp draw on my entire camper running the refrigerator on AC is only 6-7 amps per my Progressive EMS.
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sorry I was not clear on the fridge voltage. Its a duel gas/fridge. It does not have a 12v compressor.
here is the draw fridge only running off the inverter and 12v battery
its my mistake I said 36amps but its 27 amps my bad.
https://photos.app.goo.gl/if65TgfJ9vhkYvMT6
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Cougar 30Rls
Gmc 3500 Denali '14
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11-15-2022, 10:44 AM
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#25
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Senior Member
Join Date: Jan 2021
Location: USA
Posts: 278
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That's a ton of power for sure. Not going to run a fridge that way. Better off to put some ice blocks (frozen water filled jugs) in the fridge to keep it cold like in the old days. Should last a long time, coolers do.
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11-15-2022, 12:55 PM
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#26
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,317
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No way a Dometic refer pulls 27 amps if it’s on LP mode.
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2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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11-15-2022, 01:01 PM
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#27
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,317
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You might be reading charging amps.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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11-15-2022, 01:05 PM
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#28
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Senior Member
Join Date: Apr 2019
Location: Henniker
Posts: 2,138
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I agree! I can run my 13.5k AC and the fridge in electric mode at the same time all day off a 20A circuit at our family property. If the fridge is truly drawing 27A, there is something very wrong here. Maybe your decimal point is in the wrong place, because 2.7A to 3.6A sounds much more probable
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Rob & Amy
2019 Passport 240BH SL (current)
2024 Cougar 29BHL (on order, due early May)
2022 Ford F250 7.3L Godzilla Crew Cab FX4
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11-15-2022, 01:19 PM
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#29
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Senior Member
Join Date: Dec 2019
Location: Trinidad,TX
Posts: 973
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It sounds like your electric water heater was turned on.
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Woody
Cedar Creek Lake, Texas
2019 Laredo 290 SRL
2019 Ram 2500, 4x4, Cummins diesel
Andersen hitch
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11-15-2022, 06:23 PM
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#30
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Senior Member
Join Date: Jul 2021
Location: Sun Prairie, WI
Posts: 118
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27 amp draw for the fridge sounds correct, assuming that it is 27 amps at 12v. My old absorption fridge would draw 300-400 watts when running off electricity. At the ~13v my lithium batteries would hold that is about 30 amps. Those absorption fridges are terribly inefficient. My 12v compressor fridge in the new rig pulls about 50 watts when the compressor is running (and runs a heck of a lot less than the absorption).
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2022 Ford F350 CC 4x4 7.3L Godzilla
2022 Cougar Half-Ton 26RBS travel trailer
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11-15-2022, 06:39 PM
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#31
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Senior Member
Join Date: Dec 2019
Location: Trinidad,TX
Posts: 973
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If he was running on 120 volt from an inverter, not on propane, then 27 amps at 12 volt is realistic.
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Woody
Cedar Creek Lake, Texas
2019 Laredo 290 SRL
2019 Ram 2500, 4x4, Cummins diesel
Andersen hitch
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11-15-2022, 07:00 PM
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#32
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Senior Member
Join Date: Jul 2021
Location: Sun Prairie, WI
Posts: 118
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Quote:
Originally Posted by CedarCreekWoody
If he was running on 120 volt from an inverter, not on propane, then 27 amps at 12 volt is realistic.
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People must’ve just missed where he said it was 27 amps running off the inverter.
Quote:
Originally Posted by seanrmz
sorry I was not clear on the fridge voltage. It’s a duel gas/fridge. It does not have a 12v compressor.
here is the draw fridge only running off the inverter and 12v battery
its my mistake I said 36amps but its 27 amps my bad.
https://photos.app.goo.gl/if65TgfJ9vhkYvMT6
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2022 Ford F350 CC 4x4 7.3L Godzilla
2022 Cougar Half-Ton 26RBS travel trailer
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11-15-2022, 07:28 PM
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#33
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,317
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Quote:
Originally Posted by TimC
People must’ve just missed where he said it was 27 amps running off the inverter.
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I did miss that. But the 12V draw will only be 3.5A for the control board and eyebrow.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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11-15-2022, 09:46 PM
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#34
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Senior Member
Join Date: Nov 2017
Location: Picacho, Az
Posts: 6,809
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Quote:
Originally Posted by CedarCreekWoody
If he was running on 120 volt from an inverter, not on propane, then 27 amps at 12 volt is realistic.
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I'm wondering why run an absorption fridge on 120 from an inverter if a few amps are critical to the battery when gas operatin is available & more efficient?
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Full-timed 10+ years
Sold '13 Redwood FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
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11-16-2022, 05:27 AM
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#35
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Senior Member
Join Date: Jan 2021
Location: USA
Posts: 278
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I believe it was based on the OP's desire to not run the propane while towing.
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11-16-2022, 07:14 AM
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#36
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Member
Join Date: Oct 2022
Location: Canada
Posts: 70
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Quote:
Originally Posted by travelin texans
I'm wondering why run an absorption fridge on 120 from an inverter if a few amps are critical to the battery when gas operatin is available & more efficient?
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hello Travelin T, well the reason is I will be on the road in sub zero temps. I know the trip wont be for the entire trip. I am Leaving Montreal to Florida and the temps will warm up as I get more south. But for the time I will be in very very cold temps I was looking to save on propane since I will be running the furnace too. I tried to power up the electric side of the fridge to how much draw it will consume from the inverter and it was power hungry. So I think I will stay on LP side to power the fridge on the way down.
__________________
Cougar 30Rls
Gmc 3500 Denali '14
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11-16-2022, 07:19 AM
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#37
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Site Team
Join Date: Jul 2014
Location: Modesto
Posts: 20,317
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We did a test with a Dometic refer in the shop of a previous employer. On LP, with a battery on a converter. 20Lb (7 gal) tank, fridge ran for over 30 days.
__________________
2012 Copper Canyon 273FWRET being towed by a 1994 Ford F350 CC,LB,Dually diesel.
Airlift 5000 bags, Prodigy brake control, 5 gauges on the pillar.Used to tow a '97 Jayco 323RKS.
Now an RVIA registered tech. Retired from Law enforcement in 2008 after 25+ yrs.
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11-16-2022, 07:22 AM
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#38
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Member
Join Date: Oct 2022
Location: Canada
Posts: 70
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I did more digging and I didn't know when your shore hooked up the amps for the fridge
(or anything else your pulling volts) the fridge will be 3.5 to 3.7amps running on 110V, now when getting the power from the inverter you have to multiply by 10 to get the same equivalent amps. Something new I learnt today. I did not know that
__________________
Cougar 30Rls
Gmc 3500 Denali '14
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11-17-2022, 08:59 AM
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#39
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Senior Member
Join Date: Feb 2014
Location: Young America MN
Posts: 372
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We leave Minnesota at the end of December headed south. We run the furnace while traveling because we have already used it and it is no long winterized. We sometime end up coming back in March and again run the furnace. been doing this since 2011 and no problems.
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39 foot Forest River Vengeance dragged by GMC 3500.
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11-17-2022, 09:00 AM
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#40
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Member
Join Date: Jan 2020
Location: Burlington, ON
Posts: 46
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Propane while traveling
My 2c: Answer No, don't do it. Risk outways benefit.
As for lighting it through your app while traveling: Answer No, don't do it. Worst case the furnace fails to ignite....but gas continues to flow.
Many areas, especially where tunnels exist have regulations that prohibit the propane tanks to be on. Valves must be closed.
SUGGESTIONS:
If you must use the RV during rest periods, try closing off all unused sections i.e. bathroom, bedrooms etc. You will be surprised how quickly the furnace will heat up the RV.
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