Will The Dometic Water Heater DMC74FR Work As A Replacement For An Atwood 93756?

Updated 07/27/2026 | Published 07/20/2026

Question:

We need to replace our Atwood 93756 water heater. I think your Dometic/Atwood Water Heater DMC74FR Will work. Can you tell me if it will work?

asked by: Jenny S

Expert Reply:

Hi Jenny!

The Dometic RV Water Heater - 10,000 Btu - Propane/Electric - 6 Gallon Tank - 120V - No Door # DMC74FR will be a great option for replacing your Atwood 93756. From what I could find, the dimensions are very close (Dometic: 12-3/4" tall x 12-3/4" wide x 19-7/8" deep - Atwood: 12-1/2" tall x 16" wide x 18" deep), but you may need to shore up the framing a little to get it to fit perfectly. This will be the closest option we have to your current heater that runs on propane and electrics. It tends to be the one we recommend when we run across this specific Atwood water heater.

What kind of camper are you needing this for? And have you thought about going tankless? They are a bit more expensive and are propane only, but they do have endless hot water, which is nice!

expert reply by: Lazer S

Scott C.

7/26/2026

Agree with Lazer S on tankless water heater with one exceptions anyone considering tankless should be aware of. Tankless water heaters will freeze in Colorado, Wyoming, South Dakota fall and winter temps and typically are recommended to winterize when ambient temperature is 39 degrees Fahrenheit. It’s the one appliance I have customers demanding (no pun intended) replaced with a tank heater.

Lazer S.

7/27/2026

@ScottC That's a very good point. You definitely need to winterize tankless water heaters if you are in a location that freezes in the winter. Are you an installer?