Replacing Old Atwood Furnace 120V AC Park Model With New Dometic 12V Modern Furnace
Updated 08/25/2025 | Published 08/22/2025
Products Featured in This Question
Question:
My old Atwood furnace ran on 120V AC in a park model. Do these Dometic 12V furnaces work in that setup?
asked by: Mark
Expert Reply:
Mark, great catch. These furnaces, such as Doorless # DMC74MR, White Door # DMC99MR, and Black Door # DMC64MR are strictly 12V DC for the electronics and blower, so you’d need to wire in a 12V supply. In a park model, that usually means adding a converter and 12V battery setup.
Are you open to wiring in a 12V system, or do you want to stay 120V only?
For others here with park models - did you convert to 12V furnaces, or stick with AC units?
Product Page this Question was Asked From
Dometic RV LP Gas Furnace - 35,000 Btu - 12V - Doorless/Not Intended for Exterior Access
- RV Furnace
- Doorless
- 5th Wheel
- Motorhome
- Travel Trailer
- 35000 Btu
- 16-1/2W x 7T x 20D Inch
- Dometic
more information >
Featured Help Information
Instructions
Continue Researching
- Q&A: Replacing Old Atwood AFMD35121 Furnace With Dometic Furnace In 2019 Keystone Cougar 5th Wheel RV
- Q&A: Replacement for a 25,000 Btu Atwood 8535-iv-dclp Furnace
- Q&A: Availability of 2" Ball for Curt TruTrack 2P Weight Distribution System
- Q&A: Replacement Furnace for a Atwood AFMD30121
- Q&A: Recommended Black Trim Kit for a 1.1 Cu Ft Furrion Built-In RV Convection Microwave and Air Fryer
- Q&A: Recommended Replacement 3,500 Lbs Dexter Axle With A 86.5 Hub Face Measurement
- Q&A: Is There a Replacement Inner Arm for a Solera Awning V000564552
- Article: Trailer Drum Brakes vs. Disc Brakes: Making the Decision
- Article: 30-Amp and 50-Amp RV Service: What's the Difference?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Converting Your RV Water Heater to Tankless
- Article: Trailer Wiring Diagrams