Best Low Drawing RV AC Unit that Can Work with Furnace
Updated 06/25/2026 | Published 06/24/2026
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
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.
(click to enlarge)
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
Product Page this Question was Asked From
Furrion Variable Speed Chill Cube RV AC w/ Heat Pump - 18K Btu - Non-Ducted - R32 - AC Unit Only
- RV Air Conditioners
- AC Unit Only
- Heat and Cool
- 18000 Btu
- Standard Height
- Single Zone
- Rooftop
- Non-Ducted
- Black
- Furrion
more information >
Continue Researching
- Shop: Furrion Variable Speed Chill Cube RV AC w/ Heat Pump & Ceiling Assembly - 18K Btu - Non-Ducted - R32
- Search Results: coleman~mach rv ac
- Search Results: coleman~mach rv ac soft start
- Video: Review of Furrion RV Air Conditioners - Black 18K BTU Variable Speed Chill Cube Ductless - FR87TQ
- Q&A: Can Furrion Chill Cube Replace A Dometic AC Unit From 2019?
- Shop: Mach-C Everest Variable Speed RV Air Conditioner System - 18K Btu - Ducted/Non-Ducted - R32 - White
- Shop: Mach-C Everest Variable Speed RV Air Conditioner System - 18K Btu - Ducted/Non-Ducted - R32 - Black
- Shop: Mach-C Everest Variable Speed RV Air Conditioner - 18K Btu - Ducted/Non-Ducted - R32 - AC Unit Only
- Shop: Furrion Variable Speed Chill Cube RV AC w/ Heat Pump - 18K Btu - Non-Ducted - R32 - AC Unit Only
- Q&A: Can RV Furnace Run on Analog Only Thermostat
- Shop: Dometic Digital Thermostat - Furnace Control Only - White
- Search Results: furrion chill cube 18k ducted
- Search Results: chill cube ducted
- Search Results: chill cube 18k
- Search Results: rv vent
- Search Results: rv accessories
- Shop: RV Designer Provent RV Ceiling Vent with 360-Degree Rotation and Damper - 4" Duct - White
- Q&A: Does etrailer Carry Furrion Chill Cube w/ Heat Pump to Replace Dometic Duo-Therm
- Article: Trailer Wiring Diagrams
- Shop: Trailer Hitch
- Shop: Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Suspension Enhancement
- Q&A: Availability of Heat Strip or Heat Pump for Furrion Chill Cube RV AC
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Q&A: Will a Furrion Chill Cube RV Air Conditioner Fit the Some Cutout as a Dometic AC?
- Shop: Brake Controller
- Article: RV AC Not Cooling? What's Normal, What to Check, and When to Replace
- Video: In-Depth Look at the B&W 5th Wheel to Gooseneck Pin Box
- Video: Feature Review - Big Truck Big RV Trailer Jack Foot Scale with Tongue Weight Gauge
on RV Air Conditioners
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