RV fridge as freezer?

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RV fridge as freezer?

Postby CanuckShooter » Thu Dec 14, 2017 1:21 am

I've come onto a couple old campers and was wondering if I could use one of the fridges as usual...and use another as a freezer in the build I am planning? Do those Dometic RV type fridges get cold enough to use as a freezer?
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Re: RV fridge as freezer?

Postby CanuckShooter » Sat Dec 16, 2017 1:39 pm

Did I ask in the wrong section??
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Re: RV fridge as freezer?

Postby Esteban » Sat Dec 16, 2017 4:45 pm

Dometic CFX Fridge/Freezers are rated to cool down to a freezing -7F.
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Re: RV fridge as freezer?

Postby bdosborn » Sat Dec 16, 2017 5:36 pm

CanuckShooter wrote:I've come onto a couple old campers and was wondering if I could use one of the fridges as usual...and use another as a freezer in the build I am planning? Do those Dometic RV type fridges get cold enough to use as a freezer?


Probably the luck of the draw with what ever fridge you get. Some of the old propane ones work really well and some don't. The one I had didn't even keep the refrigerator at a safe level, so I replaced it with a 12V Tundra fridge. It will reliably get down to freezing at the price of much higher electrical usage.

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Re: RV fridge as freezer?

Postby MtnDon » Sat Dec 16, 2017 8:36 pm

CanuckShooter wrote:I've come onto a couple old campers and was wondering if I could use one of the fridges as usual...and use another as a freezer in the build I am planning? Do those Dometic RV type fridges get cold enough to use as a freezer?



No, not the std RV fridge.
Our 6x12 deep vee nose cargo trailer camper conversion... viewtopic.php?f=42&t=58336

We have a small off grid cabin we built ourselves in the NM mountains; small PV solar system; 624 watts PV, Outback CC & inverter/charger ... http://countryplans.com/smf/index.php?topic=2335.0
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Re: RV fridge as freezer?

Postby John61CT » Sat Dec 16, 2017 9:41 pm

Get the 12V only compressor type.

Engel is the best, but even much cheaper ones are fine, check out CL, look for sales.
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Re: RV fridge as freezer?

Postby CanuckShooter » Sat Dec 16, 2017 10:58 pm

MtnDon wrote:
CanuckShooter wrote:I've come onto a couple old campers and was wondering if I could use one of the fridges as usual...and use another as a freezer in the build I am planning? Do those Dometic RV type fridges get cold enough to use as a freezer?



No, not the std RV fridge.


That's too bad, could have saved myself some money. Thank you.
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Re: RV fridge as freezer?

Postby CanuckShooter » Sat Dec 16, 2017 11:09 pm

Esteban wrote:Dometic CFX Fridge/Freezers are rated to cool down to a freezing -7F.


I've looked at that type here in Canada, and they are very expensive. I already bought a brand new 3 way fridge, but as we are almost always boon docking having more freezer capacity would be a bonus for us.

I found this type which would work when we are out hunting and no 110 is available.

https://bensdiscountsupply.com/unique-2 ... 2-sm-grey/

The more I look, the more a small electric freezer and a small generator may be the way to go.
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Re: RV fridge as freezer?

Postby Esteban » Sun Dec 17, 2017 3:58 am

CanuckShooter wrote:
Esteban wrote:Dometic CFX Fridge/Freezers are rated to cool down to a freezing -7F.


I've looked at that type here in Canada, and they are very expensive. I already bought a brand new 3 way fridge, but as we are almost always boon docking having more freezer capacity would be a bonus for us.

I found this type which would work when we are out hunting and no 110 is available.

https://bensdiscountsupply.com/unique-2 ... 2-sm-grey/

The more I look, the more a small electric freezer and a small generator may be the way to go.


truckfridge.com or northernfridge.ca sell fridge/freezers that may meet your needs more affordably.
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Re: RV fridge as freezer?

Postby John61CT » Sun Dec 17, 2017 9:59 am

3-way fridges are for powered campsites, the 12V side is only for use while driving, too horribly inefficient for use off batteries.
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Re: RV fridge as freezer?

Postby Esteban » Sun Dec 17, 2017 3:29 pm

John61CT wrote:3-way fridges are for powered campsites, the 12V side is only for use while driving, too horribly inefficient for use off batteries.

:thumbsup: Solar power, stored in a battery to use when needed, can be sufficient to power an AC/DC fridge/freezer.

My teardrop will have a 160 watt 12 volt solar panel installed on the roof, a mppt solar charger, a group 31 AGM battery, and an AC/DC fridge/freezer. Most likely I'll buy a Dometic CFX-50US CoolFreeze or a Domeic CFX-40US CoolFreeze. The teardrop will also have a 30 amp shore power inlet, a PD4045 power center, all LED lighting, and a 7-way trailer connector so the tow vehicle can provide DC power to charge the teardrop's battery while driving.

It's kind of a belt and suspenders electrical set-up that should work under almost any foreseeable conditions, other than a Zombie Apocalypse.

:thumbdown: I do not plan to use or buy a generator.
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Re: RV fridge as freezer?

Postby MtnDon » Sun Dec 17, 2017 7:01 pm

We have the 4.something cu ft truckfridge. Works well.
Our 6x12 deep vee nose cargo trailer camper conversion... viewtopic.php?f=42&t=58336

We have a small off grid cabin we built ourselves in the NM mountains; small PV solar system; 624 watts PV, Outback CC & inverter/charger ... http://countryplans.com/smf/index.php?topic=2335.0
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Re: RV fridge as freezer?

Postby MtnDon » Sun Dec 17, 2017 7:03 pm

John61CT wrote:3-way fridges are for powered campsites, the 12V side is only for use while driving, too horribly inefficient for use off batteries.


The last full size RV we had with a Norcold 3 way used 10 amps when the fridge ran on 12 VDC.
Our 6x12 deep vee nose cargo trailer camper conversion... viewtopic.php?f=42&t=58336

We have a small off grid cabin we built ourselves in the NM mountains; small PV solar system; 624 watts PV, Outback CC & inverter/charger ... http://countryplans.com/smf/index.php?topic=2335.0
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Re: RV fridge as freezer?

Postby CanuckShooter » Sun Dec 17, 2017 10:10 pm

John61CT wrote:3-way fridges are for powered campsites, the 12V side is only for use while driving, too horribly inefficient for use off batteries.


I use propane on extended hunting trips, and the 12v while travelling, the 110 is for when we have the camper unit parked in the driveway prior to heading out.
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Re: RV fridge as freezer?

Postby John61CT » Sun Dec 17, 2017 11:34 pm

MtnDon wrote:The last full size RV we had with a Norcold 3 way used 10 amps when the fridge ran on 12 VDC.
yes that's huge for solar, an efficient compressor type uses a small fraction of that even when set as a freezer in sweltering conditions.
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