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Open Roads Forum  >  Travel Trailers  >  General Q&A

 > Running a fridge on propane?

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DinTulsa

Tulsa

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Posted: 06/15/21 10:19am Link  |  Quote  |  Print  |  Notify Moderator

Roughly how long can I run a fridge on propane in 90 degree heat? I’m camping at a site that has 30amp only so I’m wanting to run my fridge on propane. Will a 20lb cylinder normally last 4 days?

Ed_Gee

Central Oregon coast

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Posted: 06/15/21 10:45am Link  |  Quote  |  Print  |  Notify Moderator

My three way fridge draws 2.5 Amps when it is in cooling cycle. I wouldn't think that will have much impact on your 30A shore power consumption. My experience with fridge on LPG mode is that it will run for weeks .... propane usage is quite low.


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Boon Docker

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Posted: 06/15/21 10:54am Link  |  Quote  |  Print  |  Notify Moderator

You will be good for many more days that just 4 days, more like weeks.

Sandia Man

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Posted: 06/15/21 10:58am Link  |  Quote  |  Print  |  Notify Moderator

With a full propane tank your fridge on LP mode will go quite a while, 4 days should be no problem. Our 4 door RV fridge consumes roughly 4 amps, if attempting to run both ACs on 30 Amps those few amps to power fridge could put you just over 30 amps, in that situation we have WH and fridge set to propane.

Jim2007

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Posted: 06/15/21 11:01am Link  |  Quote  |  Print  |  Notify Moderator

I agree with Ed and Boon. Jim2007


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Old-Biscuit

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Posted: 06/15/21 11:16am Link  |  Quote  |  Print  |  Notify Moderator

Large fridge 450W elements.....3.5A AC draw

Water heater 1400W element......11.5A AC draw

Propane has 91,500btu per gallon...20#/4.5gal cylinder----411,750btu available
Fridge would have roughly 1500btu per hour of run time
Water heater roughly 10,000 - 12,000btu per hour run time

Propane can feed those 2 appliances for LONG time.....weeks


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2oldman

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Posted: 06/15/21 12:13pm Link  |  Quote  |  Print  |  Notify Moderator

DinTulsa wrote:

Roughly how long can I run a fridge on propane in 90 degree heat?
Long time. Less time if your fridge is on the pm sunny side.

DinTulsa

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Posted: 06/15/21 01:20pm Link  |  Quote  |  Print  |  Notify Moderator

Thank you! Am I understanding g so if you correctly that you can run both Ac units on a 30 amp, given you run the fridge and wh on propane?

dodge guy

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Posted: 06/15/21 02:28pm Link  |  Quote  |  Print  |  Notify Moderator

DinTulsa wrote:

Thank you! Am I understanding g so if you correctly that you can run both Ac units on a 30 amp, given you run the fridge and wh on propane?


Unless both have the soft start capacitors, no! You will only be able to run one.


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2oldman

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Posted: 06/15/21 02:37pm Link  |  Quote  |  Print  |  Notify Moderator

DinTulsa wrote:

Am I understanding g so if you correctly that you can run both Ac units on a 30 amp,
It's iffy running both at the same time, plus you likely have a converter. I would pay very close attention to heat at your plug.

* This post was edited 06/15/21 03:25pm by 2oldman *

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