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Old 10-07-2017, 05:46 AM   #1
Join Date: Aug 2017
Posts: 22
Dometic RM3962RB gas consumption

How much gas can the Dometic RM3962RB consume? How long does a 20 lb gas tank last? Thanks.

willvalenton is offline   Reply With Quote
Old 10-07-2017, 07:36 AM   #2
Join Date: Nov 2015
Location: Midwest
Posts: 2,573
Year: 2003
Coachwork: BlueBird
Chassis: TC2000
Engine: 5.9L Cummins
Rated Cap: '00
Website says:

Power consumption on gas 1501.28 BTU/h

Interwebs says:
1 lb. of Propane 21,600 BTU
1 Gal. of Propane 91,000 BTU

BBQ-sized tank is 20 lbs

My math teacher says:
14 hr/lb
14*20=280 hrs
280/24= 11 days.......But

It's tough to utilize all the propane in the tank.

Somebody doublecheck me....have not had coffee yet.
Rusty is offline   Reply With Quote
Old 10-07-2017, 01:07 PM   #3
Bus Geek
Join Date: May 2016
Location: Eastern WA
Posts: 6,401
Year: 2002
Coachwork: Bluebird
Chassis: All American RE (A3RE)
Engine: Cummins ISC (8.3)
Rated Cap: 72
The gas burner will have a variable duty cycle depending on outside temperature and usage.

You can gauge propane consumption using a bathroom scale. Weigh the (full) tank, run the fridge for a week and weigh it again.
PNW_Steve is offline   Reply With Quote
Old 10-07-2017, 01:27 PM   #4
Bus Nut
Join Date: Mar 2017
Location: Greenwood, Indiana
Posts: 671
Year: 1999
Coachwork: New Flyer
Chassis: D45HF "Viking"
Engine: 11.1L Detroit Diesel S60
Rated Cap: 51,600
On first blush your math looks right. However, most places don't fill the cylinders all the way:

so you may only get 75% of the calculated run time....
MarkyDee is offline   Reply With Quote

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