Can Tankless Water Heater Replace Water Heater With Tank
Updated 10/30/2025 | Published 09/28/2025
Products Featured in This Question
Question:
Can you replace an existing tank water heater with a tankless in an RV if so what is needed to make the conservsion?
asked by: Brian F
Expert Reply:
Hey Brian! You can definitely replace your existing water heater with a tankless water heater. I recommend the Furrion RV Tankless Water Heater as a replacement. This will use your existing gas and plumbing lines so the only thing you need to do is measure your cutout. The Furrion requires a 12-3/4" to 12-13/16" wide x 12-5/8" to 12-3/4" high x 23-1/2" deep cutout for installation. You can choose from the following based on door color/size:
-Furrion RV Tankless Water Heater - Gas - Auto Pilot - 60,000 BTU - 16" x 16" Door - Black # FR32TD
-Furrion RV Tankless Water Heater - Gas - Auto Pilot - 60,000 BTU - 16" x 18" Door - Black # FR92TD
-Furrion RV Tankless Water Heater - Gas - Auto Pilot - 60,000 BTU - 18" x 18" Door - Black # FR42TD
-Furrion RV Tankless Water Heater - Gas - Automatic Pilot - 60,000 BTU - 16" x 16" Door # FR98SR
-Furrion RV Tankless Water Heater - Gas - Automatic Pilot - 60,000 BTU - 16" x 18" Door # FR48SR
-Furrion RV Tankless Water Heater - Gas - Automatic Pilot - 60,000 BTU - 18" x 18" Door # FR68SR
What water heater do you have now?
(click to enlarge)
Product Page this Question was Asked From
Dometic RV Water Heater - 10,000 Btu - Propane/Electric - 6 Gallon Tank - 120V - Black Door
- RV Water Heater
- Standard Water Heater
- Propane and Electric
- 10000 Btu or Less
- 120 Volts
- 6 Gallon Tank
- 12-3/4L x 12-3/4W x 19-7/8D Inch Cutout
- Black Door
- Dometic
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Q&A: Replacement Water Heater for a Atwood GC10A-4E
- Search Results: tankless water heater rv water heater
- Shop: Dometic RV Water Heater - 10,000 Btu - Propane/Electric - 6 Gallon Tank - 120V - Black Door
- Shop: RV Camera
- Search Results: furrion camera mount
- Shop: Furrion Vision S Wireless RV Backup Camera System w/ Night Vision - Rear Mount - 5" Screen
- Shop: Phoenix Electric Trailer Jack with Remote - A-Frame - 26" Lift - 5,500 lbs
- Q&A: Replacement GE Air Conditioner for a ARC15AACBL2
- Q&A: Recommended Replacement for Atwood GC10A-4E RV Water Heater
- Q&A: Replacement AC for a GE AC Unit Model ARC13AACBL2
- Q&A: Recommended Replacement Water Heater for Atwood GC6AA-10E
- Q&A: Correct Replacement for an Atwood Water Heater GC6AA-9E
- Q&A: Can I Swap Out the Cam Flat Bar to One that is 2 1/2" Long Instead of the 1 7/8"?
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Flat Towing Package for 1998-2006 Jeep Wrangler
- Article: Performance Chips and Modules
- Article: 4 Steps to Choosing Your 5th Wheel Pin Box
- Article: Converting Your RV Water Heater to Tankless
- Article: Trailer Wiring Diagrams
- Article: Sidewinder with Rotating Turret for Short Bed Pickups
Robin H.
10/30/2025
Hey Brian, how did the swap from your Dometic water heater to the Furrion tankless unit go? Did the existing gas and plumbing lines line up the way you expected? Your update could make it easier for others planning the same conversion.