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
- Search Results: rv awnings
- Search Results: wind sensor
- Shop: etrailer 12V Power RV Patio Awning - 18' Wide - 8' Projection - 4-Layer Vinyl - Black Fade
- Shop: Solera XL 12V Power RV Awning - 21' Wide - 9'8" Projection - White Fade
- Q&A: Looking for Replacement Awning for 2020 Forest River Surveyor Legend, model 242RBLE
- Q&A: Awning Components Needed for Installation
- Q&A: Is Solera 12V XL Power RV Awning Available in Blue or Red
- Q&A: How Much Awning Rail Is Needed For The Solera XL 12V Power RV Awning # LCV000335015-362241?
- Shop: Solera 12V Electric RV Awning Conversion Kit - 69" Arms - Black
- Video: Comprehensive Review: LED Light Kit w/ Switch for Solera RV Awnings with Prepflex Fabric
- Shop: LED Light Kit w/ Switch for Solera RV Awnings with Prepflex Fabric - Up to 21' Wide
- Shop: Optronics Co27 Trailer Battery Charger - DC to DC - 12V/24V
- Q&A: Difference Between Standard and Smart Arm Solera 12V Power RV Awning Conversion Kit
- Q&A: Recommended Replacement For A Dometic CareFree Latitude Awning On A 2017 Thor Windsport 34 P
- Shop: Solera XL 12V Power RV Awning - 12' Wide - 9'8" Projection - White Fade
- Shop: Solera XL 12V Power RV Awning - 11' Wide - 9'8" Projection - Black Fade
- Search Results: rv water heater
- Q&A: Recommended Replacement Slide Out Seals For A 2014 Heartland North Trail Travel Trailer
- Video: Installing the Rubber Wiper Seal for RV Slide Out on your 2007 Fleetwood Bounder Motorhome
- Search Results: tankless water heater rv water heater
- Search Results: furrion camera mount
- Shop: Trailer Hitch
- Article: Trailer Wiring Diagrams
- Search Results: trailer hitch
- Shop: Trailer Wiring
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Search Results: trailer tires and wheels
- Shop: Suspension Enhancement
- Article: How to Measure for Trailer Hitch Drop
- Video: How to Choose a Trailer Brake Controller
on RV Water Heater
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.