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Old 10-10-2018, 11:18 PM   #1
Seasoned Camper
Join Date: Dec 2017
Location: Toms River
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M.O.C. #20896
Generator running time

I'm new to a 5th wheel. How long will a Genny run on 2ea 30 gal propain tanks?. We have a 3810MS Montana?. I had the refig on for two days and ran the genny for 6 hrs each day when it was empty and shut off by itself. The frig kept going. How long can i expect it to run? Going to Florida from NJ. Takes 3 days. Thaks
2018 Montana 3810MS, 5.5 Gen
2015 Chev K2500HD, 6.6L Diesel
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Old 10-11-2018, 04:59 AM   #2
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Location: Fulton
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M.O.C. #20688
Why are you running the generator?
Wayne & Malinda
2018 Montana 3731FL
2017 F450 DRW KR 4x4
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Old 10-11-2018, 09:39 AM   #3
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Join Date: Mar 2018
Location: Stark City
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M.O.C. #21339
If you have a residential fridge, I just make sure my park lights are on and it keeps the fridge running while driving down the highway, I've drove 11 hours and fridge is as cold as when I left. Don't see a need to run the generator.
Indian Springs Farm
2018 3121RL Samsung Residential Fridge
2018 Ford F250 PSD Air Lift 5000
Sailun 637 tires Predator 3500 (2) paralleled
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Old 10-11-2018, 11:46 AM   #4
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M.O.C. #22360
I usually get 6-8 hours per 30# tank on the 5500W Onan. When it ran for multiple hours, it was running one AC, the refer and the converter and occasionally the microwave. I've been using the same generator since 2006. I transferred it over to the new 2019 the day the trailer was delivered. It only has 155 hrs on it.
2013 F350 Lariat Ultimate FX4 CC LB SRW
2019 3790RD 20th Anniversary Edition, 265W solar panel w/ 30A MPPT controller, 2000W Inverter, 5500W Onan, Slide Awnings, 3rd AC, disc brakes
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Old 10-11-2018, 05:02 PM   #5
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M.O.C. #21450
Jetskier is correct. Around 1 gallon / hour, depending on load.
Dale and Char Scott
2012 F350 6.7L
2018 Montana HC 380TH
Snowy and Mouse
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Old 10-16-2018, 05:46 AM   #6
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M.O.C. #22355
I have run my honda 7000 for 36 hrs straight , running the ac for a weekend
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