Forum Discussion

CampFridge1's avatar
CampFridge1
Explorer
Jan 02, 2014

Rv Refrigerators vs Household Refrigerator in your Rv

I would like to chime in on replacing your rv fridge with a household fridge. First of all for years now I have been educating anyone who ask me for my opinion on which is better, I have a very simple answer for that. If you dry camp (camp where there is no utility hook-up) then a rv refrigerator is a must. If you live full time in an rv and travel only where there is shore power (full time electricity)then a household fridge will do you fine. A rv fridge at the best has to be level facing the fridge plus/minus 3 degrees side to side and 6 degrees front to back. Where as a household fridge can run off level both ways as much as 30 degrees. Mind you if you take your rv fridge out it is best to store it just in case you sell the rv either the new owners or the rv dealer may ask you to discount the price for a new rv fridge replacement.

Once I had a gentleman call me and ask "out of all the rv fridges out there which woulds I suggest as the best"? First thing out of my mouth was if you have a fridge that is not cooling I could fix it "knowing that the big rv companies would tell a customer if the cooling unit was out you need to buy a new fridge" He finally told me that he had bought a new rv that had a household fridge in it and the dealer told him that the rv had plenty of solar panels and deep cycle batteries not to mention the inverter to safely run the fridge without the generator, this guy did his research and these people had the best sells pitch out of everyone he had talked to. He bought the rig and started to use it well since he bought the rv with the express purpose of using it to live in while he was working he quickly realized that that living off the grid his generator would kick on and run 6 hours on a 24 hour cycle. He called the dealer and they told him he must be doing something wrong maybe it was a cloudy day or anything but their system. Well after a few weeks later he called them back and finally gave them his professional opinion on their system. He told them that he was a electrical engineer sub-contractor for Southern Cal Edison and spends allot of time working out in the middle of no where. and gave them the stats on their system, after they realized he knew what he was talking about, the rv manufacturer told him if he signed a confidentiality statement they would install any rv fridge he chose. He told me this before he signed the agreement. Household fridges have their place in rv's if you plan on never dry camping I know there will be people out there that will tell me they do fine with their solar panels and batteries, but unless you are like my friend that engineers electricity for a living, as he said you better have a lot of solar panel on your roof with tracking capability and plenty of storage batteries and never go where it is cloudy.

27 Replies

  • So how many watts of solar and how much battery did the RV have?

    Because 6hrs of generator time every 24 hours sounds like the solar was not actually connected.
    That or the person was a heavy user of 12v power for other items.
  • Weeks maybe but you are still a slave to the sun. 12v compressors are the way to go
  • Here is something to consider, ammonia absorption refrigerators are energy hogs, and should only be used if you are dry camping and of course some of you would say a Freon refrigerator will work just as well. If you can run your fridge with solar and batteries then your right, but if anytime you have to kick on a generator to compensates to keep your food cold then the fuel you use on that generator has to be figured into the power consumption. Ammonia absorption fridges when a generator vs a propane flame are way more efficient, at that point an 8 cu ft fridge in the winter time uses about a gallon of propane a week and remember winter the sun is not always out. So how much fuel would a generator use running the house fridge at that point?
  • Two things.

    I like the RV type fridge just for the option of running off propane. Never have trouble leveling the rig for the fridge. If I'm comfortable, the fridge is comfortable.

    Your friend might be a fantastic electrical engineer - but is he a solar power engineer. There are a lot of things to solar which regular EE never get into. Not a lot of EE are 12VDC experts. It is a very different animal than 120 and higher AC.

    Because solar, battery banks and such is all about 12VDC - not the 120 part after the inverter. Because the description of the problem of the generator running sounds like a battery charging problem, not a solar problem or a fridge problem.

    A household fridge should not be running enough to require the generator to run for six hours unless something is very wrong with the fridge.

    What is the parasitic load on the rig?

    That said - I'm not sure I would trust any RV dealer to actually know a lot about solar. Heck, a lot of RV salesmen and techs have never spent a night camping in an RV.

    There are many people on this forum who are successful at running such appliances on solar for weeks each year.
  • A Dometic RM1350 it has bigger absorption coils, but unfortunately way too many bells and whistles, lessor of two evils. Your right you do not need a engineering degree to run off the grid the point was he proved the dealer wrong. and anyone here in So Cal that can run their fridge equal to 12 cu.ft. or larger year round. I will promote you. and rally your cause. just tell me where you are and let me come visit your set up. It your living green I will promote your cause.
  • Nor do you need tracking solar panels. With all of the folks here running residential fridge's and solar, not one has ever said they are running or need tracking panels.

    There are a LOT of missing numbers here with regard to panel capacity, AH draw on the most popular residential models, battery capacity (less important than solar),

    Even though this has been covered over and over, it's the data that's important to making it work and always good reading.
  • Really long winded run on paragraphs for:

    Residential fridges if you have good source of AC power or good source of charging battery and using an inverter
    Absorption fridge..level to operate

    So which absorption fridge did you recommend to the engineer?

    And you don't need to be an electrical engineer to set-up solar panels, battery bank, inverter and run of the grid.

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,263 PostsLatest Activity: Jun 09, 2025