Dometic 10 Gallon RV Water Heaters

Which Dometic 10 gallon RV water heater fits my rig?

Match the replacement to your existing unit by model number and door cutout dimensions before ordering. Dometic 10 gallon water heaters are typically gas/electric DSI units with a standard 12-3/4" x 19-1/4" wall opening, but verify your current heater's tag and confirm whether you need LP only, LP/electric, or a motoraid version. If you are also refreshing other systems for the season, our RV winterizing kits cover the drain and bypass parts you will want on hand.

What is the difference between a 6 gallon and 10 gallon RV water heater?

A 10 gallon tank gives you roughly 16 gallons of usable hot water when mixed with cold at the fixture, compared to about 10 gallons from a 6 gallon unit. That is the difference between one rushed shower and two comfortable ones, or running the galley sink while someone showers. The 10 gallon Dometic units draw the same LP and 120V power as the 6 gallon versions; the trade-off is recovery time and wall space.

Can I replace a Suburban or Atwood 10 gallon heater with a Dometic?

In most cases yes, but the door opening and mounting flange dimensions differ between brands. Atwood/Dometic 10 gallon units share a similar footprint, while Suburban heaters have a different cutout and gas valve location that usually requires a conversion kit or sidewall modification. Measure your existing opening and compare to the Dometic spec sheet before ordering. For related plumbing connections, see our 10 gallon RV water heater collection for compatible fittings.

Does the heater ship with the door and access panel?

Dometic 10 gallon water heaters ship as the complete tank assembly with the burner, gas valve, and control board. The exterior access door is sold separately so you can match the color and style of your existing sidewall, white, black, or polar white. Confirm the door part number for your specific heater model when you order. Need help cross-referencing? Text or call our team at 817-984-1852.