How long do you run your genny to keep freezer frozen?

Naio
I think it's either more batteries for the inverter
Or
Get an off grid 12v compressor freezer

Kayteg1 wrote:

Compressors units are much better and efficient, although efficiency in RV is not top priority.

I've been on here for about a year now and I don't remember seeing the first serious complaint about a propane fridge/freezer.....except maybe a couple that have failed due to age.

110 V units, OTOH, seem to give their owners some angst about exactly how to operate them, whether they are built-in or converted later.

The generator will be more than enough--but the hours of run time won't make you a happy camper. Nor will it please your wallet. And those pesky oil changes every 100 hours are a pain.

Of course if you went solar.....*grin*

The Dometic F540 was an excellent 1.5 CF freezer. Kept food consistently -5F at 100F ambient temps. They cost $500 back in the late eighties.

Insulation is the key for a freezer. Think of it this way - a freezer is nothing more than a refrigerator with an insulation attitude.

Cruising sailboats sometimes utilize expensive glass panel vacuum insulation. A quarter inch thick vacuum panel = 12" of closed cell foam.

Go to truck camper section and read how many owners are very happy replacing factory propane refrigerator with compressor model.
When was the last time you have seen household refrigerator running on gas?
Compressors units are much better and efficient, although efficiency in RV is not top priority.

Naio wrote:

There are propane freezers made, but forum people say they basically suck.

"Forum people" aren't always right.

Why should it be any different than the freezer section of a propane fridge ???

I'm talking about a freezer, not a fridge :).

There are propane freezers made, but forum people say they basically suck.

I think even with restarting freezer twice a day in hot van, you are risking too high temperatures.
Get one of those thermometers with outside display to start with.
When I was restoring old Airstream trailer - the fridge was shot and replacement in direct size unavailable.
I put household, $120 fridge in it and wired to inverter.
The 36" tall fridge was taking very small current and I calculated that 100 amh battery would power it continuously for over 3hr.
Since I used the inverter on the road and never stop for longer than 3 hr, the fridge was working very well.
With today's technology you have lot of choices. You can add bigger battery bank and have freezer having power all the time, or have a timer that would run freezer 4-6 times a day to time it with generator run at certain time of a day.
The main idea is that generator recharge the batteries, what via inverter runs freezer 24hr a day.
Adding solar would be ice on the cake.

Can't you get a propane fridge for a class B?