Best Option For Replacing Duo-Therm AC Units On 2008 SuperNova Super C Motorhome
Updated 09/11/2025 | Published 08/01/2025
Products Featured in This Question
Question:
I have a 2008 SuperNova Super C motor home. It currently has 2 ducted ac units independently controlled by thermostats. Bedroom is an 11kBTU duo therm and the living room is a 13k btu duo therm. I would like to upgrade both to 15000 btu. Plug and play if possible to existing thermostats and ducts.
asked by: Kenneth S
(click to enlarge)
(click to enlarge)
Expert Reply:
Hello Kenneth, thanks for reaching out. We do have AC units you can use to replace your Duo Therm units. There are no plug and play options though, so it will involve replacing your rooftop unit, controller, distribution box and thermostat. Reason being, the new AC units all use a new R32 refrigerant per EPA regulations. These R32 units are not backwards compatible with older AC systems. There would likely be communication issues and in some cases it could even be a fire hazard.
That said, we do offer a 15,000 BTU unit that will work great for you. I recommend the following:
- Advent Air RV Air Conditioner System - Single Zone - 15,000 Btu - White - R32 # ADV92SR
This comes with everything you need to replace your AC system. You get the rooftop unit, distribution box, controller, start capacitor and thermostat. This will work with the ducted system on your RV.
(click to enlarge)
Continue Researching
- Search Results: acdom150b
- Search Results: rv air conditioners
- Shop: Advent Air RV Air Conditioner - 15,000 Btu - Black - R32
- Shop: Replacement Gear Motor Assembly for Lippert Slide-Out
- Video: Breaking Down the Advent Air Replacement RV Air Conditioner for Dometic Setup
- Q&A: Differences Between the ACM150 and ACDOM150
- Q&A: Replacement 15K AC Units for a Dometic Model 641516
- Shop: Gen-Y Phantom X Adjustable 3-Ball Mount - 2" Hitch - 2-1/2" Drop - 10K
- Video: Detailed Breakdown of the Shocker Hitch HD Air 2-Ball Mount w/ Sway Control Tabs
- Video: Buyers Products Adjustable Tri-Ball Mount for 2" Hitches: The Breakdown
- Q&A: Can Longer Shank Be Used With Buyer's Products 3371802225 Adjustable Ball Mount
- Q&A: Recommended Adjustable Ball Mount with Long Shank for Back of Class C Motorhome
- Shop: Shocker Hitch HD Air 2-Ball Mount w/ Sway Control Tabs - 2-1/2" Hitch - 4-1/2" Drop - 20K
- Shop: Buyers Products Adjustable Tri-Ball Mount for 2" Hitches - 6" Drop/Rise - Solid Shank
- Shop: Hidden Hitch Ball Mount - 3/4" Rise, 2" Drop - 15-3/4" Long - 6,000 lbs
Jesse M.
9/2/2025
Hey Kenneth, did you decide to go with the Advent Air AC system for your motor home? I'm curious to know how the installation went and if it resolved your cooling needs. Your experience could really help others looking to upgrade their AC units.