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Open Roads Forum  >  Beginning RVing

 > Propane use by Frige

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esox07

Wisconsin

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Posted: 01/23/13 09:21pm Link  |  Print  |  Notify Moderator

I see that most people run their fridge on propane for several hours to a day to cool it down to normal temp before leaving for a campground and then usually switch to shore power after arriving. How long would you normally have to pre-cool on propane and how much propane will a 4.5cf fridge use per hour while cooling down and running? Is it better to pre-cool with propane or would it be better to connect to home power and cool it down on electric? Then, is it normal to run it on propane while driving to the campground?
Bruce


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2oldman

Moses Lake

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Posted: 01/23/13 09:27pm Link  |  Print  |  Notify Moderator

6-12 hours
very little
doesn't matter
yes

tanman32225

Jacksonville, Florida

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Posted: 01/23/13 09:34pm Link  |  Print  |  Notify Moderator

I cool mine down by shore power at home. When I leave the drive it switches to propane then re connect to shore power. It took me dozen trips, use of furnace, use of oven several times making biscuits and pizza to use one 30# tank if that helps in the usage. one trip was 10 hours each way on gas. I would say overall the refrigerator uses very little.

hmknightnc

Wilmington, NC

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Posted: 01/23/13 09:38pm Link  |  Print  |  Notify Moderator

4 to 6 hours on mine to cool down. Both electric and gas about the same
Fridges use very little propane, so little I have never even tried to measure
Either works for cool down
FW comes of out storage, fridge goes on and stays on until back into storage

Fridges also require 12v to run the control circuitry. Make sure you have sufficient battery power or are plugged in to ensure continued operation. Depending on your battery capacity and other parasitic loads you might be only able to go a few days before killing the battery without charging

old guy

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Posted: 01/23/13 10:11pm Link  |  Print  |  Notify Moderator

I don't like driving with the fridge running. I use small plastic reusable ice packs. I wedge them between the food and every thing is cold when we get to the cg and I just throw them into the freezer and refreeze them for the trip home.

Gale Hawkins

Murray, KY

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Posted: 01/23/13 11:01pm Link  |  Print  |  Notify Moderator

I agree they use very little propane but having a MH it is a pain to get to propane source more often than not so I just use electric when it is dripping out the end of a nearby socket.

For cool down in our case it is fast to use propane the first hour then go to electric if at least 120 volts at the frig outlet.

Do not not propane usage but do know on electric with temps ranging 75F to 101F daily the duty cycle is about 70% over a 24 hour period.

Golden_HVAC

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Posted: 01/23/13 11:54pm Link  |  Print  |  Notify Moderator

Hi,

The refrigerator uses about 2,200 Btu's of propane per hour. There is 95,000 Btu's of gas in a gallon, and that is enough to run the refrigerator about 42 hours, and if the burner runs for say 10 - 15 hours the first day, then about 10 hours a day after that, you can run it a week or so before needing to refill the propane tank. And most of my propane goes to water heating, not the refrigerator.

Basically don't worry about it.

Fred.

path1

Wa State (wet side)

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Posted: 01/24/13 12:19am Link  |  Print  |  Notify Moderator

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* This post was edited 03/10/13 06:58pm by path1 *


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edatlanta

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Posted: 01/24/13 03:19am Link  |  Print  |  Notify Moderator

I fulltime and my fridge is never turned off moving or not. I run it on propane while at my home base since I have a large external propane tank and it is cheaper for me to use propane than electricity. I do run the fridge on electric as well as my water heater when I am hosting at a state park since the electricity is included. Propane is used for both the rest of the year.


Ed

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tvman44

Southwest Louisiana

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Posted: 01/24/13 07:08am Link  |  Print  |  Notify Moderator

The fridge burner is about like a pilot light, or so I have been told. FWTW


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