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 > Absorption fridge 2 way vs 3 way

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Boon Docker

Mountain Foothills of Southern Alberta

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Posted: 08/25/21 06:15pm Link  |  Quote  |  Print  |  Notify Moderator

For the small amount of propane that is used I won't bother with 12v operation while traveling.

cptqueeg

Idaho

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Posted: 08/25/21 06:20pm Link  |  Quote  |  Print  |  Notify Moderator

Boon Docker wrote:

For the small amount of propane that is used I won't bother with 12v operation while traveling.



Probably a consideration for those uncomfortable w the flame. It's a personal choice that I haven't considered yet so really haven't formed an opinion.

Boon Docker

Mountain Foothills of Southern Alberta

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Posted: 08/25/21 07:28pm Link  |  Quote  |  Print  |  Notify Moderator

True, some people are uncomfortable running on propane while traveling.

valhalla360

No paticular place.

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Posted: 08/26/21 05:07am Link  |  Quote  |  Print  |  Notify Moderator

cptqueeg wrote:

Boon Docker wrote:

For the small amount of propane that is used I won't bother with 12v operation while traveling.



Probably a consideration for those uncomfortable w the flame. It's a personal choice that I haven't considered yet so really haven't formed an opinion.


Unless it's a really long travel day in hot weather...just turn off the fridge.

For a 3-4hr drive, things will still be cold when you arrive and turn the fridge back on.

It's really a solution in search of a problem.


Tammy & Mike
Ford F250 V10
2021 Gray Wolf
Gemini Catamaran 34'
Full Time spliting time between boat and RV


JRscooby

Indepmo

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Posted: 08/26/21 06:20am Link  |  Quote  |  Print  |  Notify Moderator

valhalla360 wrote:

cptqueeg wrote:

Boon Docker wrote:

For the small amount of propane that is used I won't bother with 12v operation while traveling.



Probably a consideration for those uncomfortable w the flame. It's a personal choice that I haven't considered yet so really haven't formed an opinion.


Unless it's a really long travel day in hot weather...just turn off the fridge.

For a 3-4hr drive, things will still be cold when you arrive and turn the fridge back on.

It's really a solution in search of a problem.


The only power supply to the 12 element of my fridge is the "charge" line from TV. We always camp with power, so the fridge is on 120 most of time. I'm working to hook a 1 lb bottle to the fridge so I could light it on the rare occasion we spend time stopped while traveling.
BTW, I turn my fridge on 12 V, drive 4 hrs, and inside temp will be 30*+ below outside temp. when we set up.
OP, I think if I was setting up a rig to wild camped I would look long and hard at a 12V compressor fridge. And go with the chest type, so your cold air doesn't run out on the floor every time you open the door. From what I have seen it doesn't take a lot of solar/battery to run them

cptqueeg

Idaho

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Posted: 08/26/21 06:46am Link  |  Quote  |  Print  |  Notify Moderator

JRscooby wrote:

valhalla360 wrote:

cptqueeg wrote:

Boon Docker wrote:

For the small amount of propane that is used I won't bother with 12v operation while traveling.



Probably a consideration for those uncomfortable w the flame. It's a personal choice that I haven't considered yet so really haven't formed an opinion.


Unless it's a really long travel day in hot weather...just turn off the fridge.

For a 3-4hr drive, things will still be cold when you arrive and turn the fridge back on.

It's really a solution in search of a problem.


The only power supply to the 12 element of my fridge is the "charge" line from TV. We always camp with power, so the fridge is on 120 most of time. I'm working to hook a 1 lb bottle to the fridge so I could light it on the rare occasion we spend time stopped while traveling.
BTW, I turn my fridge on 12 V, drive 4 hrs, and inside temp will be 30*+ below outside temp. when we set up.
OP, I think if I was setting up a rig to wild camped I would look long and hard at a 12V compressor fridge. And go with the chest type, so your cold air doesn't run out on the floor every time you open the door. From what I have seen it doesn't take a lot of solar/battery to run them


I have a 12v/120v compressor 130L fridge now, but not the chest type. Although I have 2 12v wet cells and 1 solar panel the frig can draw enough power to cause concerns over SOC. We ran into shaded campsites and clouds a few times already. I was able to keep things cool because I had a supply of frozen 2L water bottles to swap into the frig. (The issue has been remedied for now w a Honda generator.)

I think your idea is worth consideration though, especially since my favored brand Nova-Kool doesn't make a 3 way, afaik.

I have thought about a smaller 2 way compressor frig w no freezer in tandem w a stand alone chest type freezer. Perhaps the flexibility of being able to remove the chest frig is/should be a consideration.

valhalla360

No paticular place.

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Posted: 08/26/21 07:35am Link  |  Quote  |  Print  |  Notify Moderator

JRscooby wrote:

The only power supply to the 12 element of my fridge is the "charge" line from TV. We always camp with power, so the fridge is on 120 most of time. I'm working to hook a 1 lb bottle to the fridge so I could light it on the rare occasion we spend time stopped while traveling.
BTW, I turn my fridge on 12 V, drive 4 hrs, and inside temp will be 30*+ below outside temp. when we set up.
OP, I think if I was setting up a rig to wild camped I would look long and hard at a 12V compressor fridge. And go with the chest type, so your cold air doesn't run out on the floor every time you open the door. From what I have seen it doesn't take a lot of solar/battery to run them


Between the trailer battery and the slow charge from the hitch umbilical, for a few hours it can keep up.

While typically would just use propane on the road, a few times we've had to turn it off and 3-4hours later, the freezer was still solid frozen and the stuff in the fridge was still cold.

magicbus

Nantucket Island, MA

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Posted: 08/26/21 08:20am Link  |  Quote  |  Print  |  Notify Moderator

Is there a substantial cost difference between 2 and 3-way? I use 12V for travel, propane for boondocking and 120 when plugged in. If I didn't prefer to travel without a flame I just wouldn't use 12V and not worry I had a 3-way.

Dave


Current: 2018 Winnebago Era A
Previous: Selene 49 Trawler
Previous: Country Coach Allure 36


JRscooby

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Posted: 08/26/21 09:29am Link  |  Quote  |  Print  |  Notify Moderator

valhalla360 wrote:

JRscooby wrote:

The only power supply to the 12 element of my fridge is the "charge" line from TV. We always camp with power, so the fridge is on 120 most of time. I'm working to hook a 1 lb bottle to the fridge so I could light it on the rare occasion we spend time stopped while traveling.
BTW, I turn my fridge on 12 V, drive 4 hrs, and inside temp will be 30*+ below outside temp. when we set up.
OP, I think if I was setting up a rig to wild camped I would look long and hard at a 12V compressor fridge. And go with the chest type, so your cold air doesn't run out on the floor every time you open the door. From what I have seen it doesn't take a lot of solar/battery to run them


Between the trailer battery and the slow charge from the hitch umbilical, for a few hours it can keep up.


I think you mis-read what I typed.

"The only power supply to the 12 element of my fridge is the "charge" line from TV."

I have 10 ga wire to the plug back of TV, to the junction block where I can remove 7 nuts and take off light cord, then to the heating switch/heater on fridge. The converter or battery is only involved because they use the same ground.
My camper stays in shade, but the only electricity in it while stored is the batteries I leave in flashlites. When we are ready to go camping logic tells me the inside of the fridge will be close to the average outside temp for the last few days. I take battery out of DW's car, hook it up in box. Ground to frame, + to a 40 amp breaker. Hot side of breaker feeds brakeaway, protected feeds winch that lifts the roof. Does not feed the fridge. Driving a few hours will drop the inside temp well below the morning temp. This is somewhat more than "keeping up" When setting up I replace the bag of charcoal with a frozen gallon jug of water, and the condiments that don't need a lot of cooling. Buy the time we eat leftovers from home for supper, the folding cooler is MT. By breakfast I can put anything that needs refrigerated in there and the temp will stay below 40*

Quote:

While typically would just use propane on the road, a few times we've had to turn it off and 3-4hours later, the freezer was still solid frozen and the stuff in the fridge was still cold.


When our simple camper left the factory the only things that used propane was the stove and fridge. And after we went a couple of years without using the stove, it got stored in basement. Couple more years "why am I hauling this near 40 lbs on the tongue?" Winter trips when I load the propane heaters, I load the propane.
We don't all camp the same

StirCrazy

Kamloops, BC, Canada

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Posted: 08/26/21 06:35pm Link  |  Quote  |  Print  |  Notify Moderator

cptqueeg wrote:

Gathering info for a TC build and would like to hear from the experts. Planned usage is non-electrified campsites, primarily boondocking. 4th of July through Labor till we'll be hiding at home so shoulder seasons limit solar at times, due to shorter days, cloudy conditions, shaded campgrounds, and heavy energy use during offseason for heating is expected. For instance we have a weeks reservation in mid-October at Yellowstone for 6 nights in my current setup, a FWC Hawk.

I will have propane on board and a propane fueled Honda 2200 if there is any hint of cold or heat(will have AC.) The build is specced out currently w an inverter and all the required components of a top notch solar system. (Of course seeing how the generator would be with us most of the time expense of an excellent solar system could be revisited as well.)

My questions is would a 2 way fridge be the way to go given the inferior 12v performance in 3 way fridges considering my planned build and anticipated camping conditions?

Thank you.


I might be a little off but it apears to me you dont have a fridge and are looking to get one. if this is the case get a new auto strt 2 way. then you can leave it on propain when you are driving and if the flame blows out it will restart. I have a new one and a oldone. the old one is 3 way and it never gets used on 12V even though it does blow out once and a while. I just have to stop and relight it, but it beats the 16 amps it draws on 12V. the 5th wheel has a 2 way and lives on propain.


Steve


2014 F350 6.7 Platinum
2016 Cougar 330RBK

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