Best Low Drawing RV AC Unit that Can Work with Furnace

Question

Question:

Hi folks. I currently have a 2013 Phoenix Cruiser 2910T with Dometic Penguin Model 640315.30x or it might be 640312.30x, non-ducted. I am looking to upgrade and I am thinking the Furrion Chill Cube with heat pump. The change out should be very straight forward BUT the current set up is a Dometic with heat pump, propane furnace all controlled by Dometic thermostat. I assume the thermostat wiring runs through the roof unit and then down to the furnace and I am wondering how I can rewire the furnace with thermostat to maintain its usefulness? It is my understanding that the Furrion unit does not require a thermostat since it is remote controlled. The alternative would be a replacement with a Dometic unit which might use the same wiring but I prefer a unit that uses less amperage especially on start up. Can you guys advise me?

asked by: Walt E

0

Expert Reply:

Hey Walt, I actually would recommend the Coleman Mach-C Everest RV AC unit part # CM35MR for you over the Furrion Chill Cube as the Chill Cube isn't quite working yet with the furnaces as well as we like. There are ways to use relays that we are aware of that will allow the two to work together but it's not totally worked out.

The Everest is also a very low drawing AC unit that has a variable speed compressor too so it's not always running full blast or totally off so it's very similar in that way.

The Everest kit I mentioned does come with a new thermostat as well which you will need.

expert reply by: Jameson C

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Everest
(click to enlarge)

Walt E.

6/24/2026

Thanks! You guys are the best. And I tell you, I know enough to be dangerous but usually end up with successful projects. With the Coleman, complete with unit, diffuser and thermostat, would the wiring be pretty straight forward assuming I read the installation manual? And you say Colman does have variable speed? The reason I ask is my current unit, being old, will trip the breaker when my wife is running the microwave. I want to avoid that if possible. Again, thanks for the insight! Walt

Jameson C.

6/24/2026

@WaltE Glad to help and thanks for the kind words! Yeah it's a pretty straightforward install and the wiring wouldn't be too bad at all. The variable speed and lower amperage draw will allow you to run the microwave and this at same time without any issue!

Walt

6/25/2026

@JamesonC Thanks for this input for sure. I wonder, if the current set up has the thermostat wired I wonder if I can use the same wire instead of having to run the new t-stat wiring for the Coleman Mach unit. Or maybe use the old wiring for a pull tape of sorts.

Jameson C.

6/25/2026

@Walt You should be able to use the old wiring. That has been the feedback we have gotten.

See All (7) Replies to Walt E. ∨

Walt E.

6/24/2026

And does the Everest have heat as well as cool? When I am on shore power Ii prefer to use the heat pump feature instead of burning propane but if not available.....

Jameson C.

6/24/2026

@WaltE It doesn't have a heat pump at this time which is a drawback. The Furrion Chill Cube does have one like the part # FR37TQ does so that's a trade off to consider.

Answer 1

Hey Eddie, thanks for reaching out. You can use the Chill Cube to replace your 2019 Dometic unit, but it is not a direct plug-in replacement. It will mean replacing your entire AC system - rooftop unit, controller, distribution box and thermostat.…

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Answer 2

Hey Walt, the furnace in your RV basically just needs a thermostat that will connect a circuit to allow it to kick on. A purely analog thermostat wouldn't work but if it's one that wires run to that connect and close the circuit when needed…

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Answer 3

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

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Answer 4

Hey Melanie. The reason you can't find a replacement for your GE ARC15AACBL2 15,000 btu air conditioner is because they phased them out. In 2025 all RV AC systems had to change over to a new coolant called R32. This was a EPA mandated decision.…

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Answer 5

Hey Lars, welcome back! I can indeed confirm that the Furrion Variable Speed Chill Cube air conditioner with a heat pump is indeed really happening. They are currently available for order (02/04/26) and will be shipped out towards the middle of next…

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Answer 6

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 7

Hey Walt, I actually would recommend the Coleman Mach-C Everest RV AC unit part #CM35MR for you over the Furrion Chill Cube as the Chill Cube isn't quite working yet with the furnaces as well as we like. There are ways to use relays that we are…

view full answer...

Answer 8

That’s a great question Chadwick, and this is one of those situations where the change in technology really matters. The GE Appliances Low-Profile RV AC w/ Heat Pump part #GE26RR will replace your current ARC13AACBL2 setup, but it’s important to know…

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Answer 9

The Dometic RV Water Heater - Gas - Automatic Pilot - 12 Volt - 8,800 Btu - 6 Gal Tank Item AT96121 is the direct replacement for the GC6AA-10E. Unfortunately it is out of stock with no expected restock date. Instead I recommend the Furrion RV…

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Answer 10

Hi Collin, welcome back! The most economical replacement is going to be from Advent Air. You will need a complete system since everything moved to R32 refrigerant. If your upgraded thermostat is R32 compatible, or a smart thermostat that got a…

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