Can Dometic Gas Propane RV Furnace Run On Shore Power Without 12V Battery?
Published 08/22/2025
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Question:
I saw the DMC99MR says 12V DC power. Does that mean I can’t run it on shore power without a battery? Sorry I'm just confused here. thank you, steve
asked by: Steve
0
Expert Reply:
Steve, that’s an important detail, and it can be confusing.
The furnace blower and controls on most furnaces, such as the # DMC99MR (white door) or # DMC64MR (black door), are 12V, so most folks think you need a battery in the system even on shore power. However, your RVs converter will power the 12v fuse block in the panel without a battery, so you'll be fine to use the furnace without a battery installed.
Do you currently have a decent deep-cycle / marine battery?
expert reply by:
Andrew N
0
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