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rfuerst911sc's avatar
rfuerst911sc
Explorer
Oct 13, 2013

any last minute advice ? Compressor fridge purchase

Next weekend I am going to attend a large RV show at Atlanta motor speedway in the hopes that one or more of the 300 vendors will have good prices on compressor fridges. I'm 95 % sure I want a 12 volt compressor fridge with a Dornfoss compressor. The space requirements of my rig means I will be looking at a 3.0 - 3.5 cu. ft. size. Any last minute advice before I pull the trigger ?
  • Check this out

    Thinking outside of the box here is an example of the one we use as our Extra refer. It is portable (with two people when loaded). It works on 110 or 12 volts and cools incredibly fast. It holds a ton of stuff and you can set the temperature right down to freezing if you want. No freezer section but you could put frozen stuff in and keep it for many days as it thaws. They have automatic shut off when on 12 volts so they won't kill an engine battery if using in a lighter socket.
  • The danfoss/secop compressor when mated to the proper evaporator plate with a well ventilated condenser that cannot recycle preheated air, is likely the most efficient fridge on the planet.

    My 1.8 cubic foot Vitrifrigo fridge averages 18 amp hours per 24 hours in 75f ambients. It runs less than 20 minutes per hour when contents are already cold. And a six pack placed within is cold in a few hours.

    My experience with a Norcold/Engel compressor fridge was less impressive. It used more electricity, and the sawafuji compressor was a buzz saw which vibrated my whole van and caused much stress in trying to quieten it within its enclosure.

    That one lasted 5 years running 11 months a year before failure. My year old Danfoss can be recharged if needed. Recharging the Norcold would have cost as much as a new fridge.
  • 12 VDC fridges require a lot of Amp Hours if you plan to be off grid. They have a high duty cycle as they run almost all the time.
  • In my small home built toyhauler I have a 4cu ft or so "dorm fridge" that you can pick up at many stores. Cost is about $100. Runs on 120V off a small inverter and has run for 8 years troublefree. It, along with a CPAP, and lights etc. will run for 3-4 days off a pair of GC batteries.

    Unless power draw is a big concern, this might be much less expensive than the 12V setups and work well.
  • The only thing I can think of is the regular fridge Westend runs that cost much less. The difference could pay for the solar and batteries needed to run either.

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