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RV Tankless Water Heater, RVPart Pro GT42, with 15"x15" Black Door and Remote Controller, DC 12V, 24/7 Technical Support, High Altitude, Easy Installation, Compatible with All RVs, Black

  • Based on 151 reviews
Condition: New
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$289.99 Why this price?
Prime Day Deal · 42% off was $499.99

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon

Arrives Sunday, Jul 13
Order within 13 hours and 41 minutes
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Style: GT42


Features

  • Instant Hot Water Supply: Enjoy a constant flow of hot water without waiting. The RVPart Pro tankless water heater delivers on-demand heating. No need to preheat or worry about running out of power, as it runs on propane instead of electricity
  • High-Performance Technology: With 42,000 BTU output, an oxygen-free copper heat exchanger, and a brushless DC fan, this heater is built for both high efficiency and high-altitude use (up to 5000+ ft). Segmented combustion helps prevent overheating during summer
  • User-Friendly Operation: The built-in microcomputer panel lets you adjust water temperature between 95F and 123F. It also displays error codes for quick troubleshooting, making operation simple and stress-free
  • Compact and Lightweight Design: Designed for tight RV spaces, this unit fits a 15" x 15" door with a 13" x 13" opening. Its lightweight, compact build makes installation fast and hassle-free
  • Safety and Reliability: CSA-certified and backed by 24-month service support, this water heater includes multiple safety features: forced exhaust fan, freeze protection, stable combustion, and auto shut-off for peace of mind.

Brand: RVPart Pro


Product Dimensions: 15"W x 15"H


Special Feature: 24/7 Customer Support, CSA Certified, 2 Years Warranty, Adjustable Temperature 95°F–123°F, Anti-Freezing Protection See more


Color: Black


Voltage: 12 Volts (DC)


Brand: ‎RVPart Pro


Product Dimensions: ‎15"W x 15"H


Special Feature: ‎24/7 Customer Support, CSA Certified, 2 Years Warranty, Adjustable Temperature 95°F–123°F, Anti-Freezing Protection


Color: ‎Black


Voltage: ‎12 Volts (DC)


Maximum Flow Rate: ‎2.4 Gallons Per Minute


Maximum Temperature: ‎123 Degrees Fahrenheit


Heat Output: ‎42000 British Thermal Units


Efficiency: ‎High Efficiency


Mounting Type: ‎‎Built-in


Is Electric: ‎No


Manufacturer: ‎RVPart Pro


Item Weight: ‎31 pounds


Country of Origin: ‎China


Item model number: ‎RVG42BD


Special Features: ‎24/7 Customer Support, CSA Certified, 2 Years Warranty, Adjustable Temperature 95°F–123°F, Anti-Freezing Protection


Batteries Included?: ‎Yes


Batteries Required?: ‎No


Warranty Description: ‎24 Months


Date First Available: December 26, 2023


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jul 13

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • From Cranky Camper to Steam Queen
Style: GT60 / White
Back when I lived in the Kingdom of Lukewarm Regret, showers in my RV felt like stress-laced marathons—sprint in, rinse fast, and pray no one had just used up the last drop of heat. I dreaded going in after anyone. It was emotional damage by water pressure. Then came my knight in stainless armor: this gloriously affordable tankless water heater. Suddenly, I was living the “Spa Witch in the Wild” life—endless steam, spontaneous shower karaoke, and philosophical musings brought on by deep-conditioning bliss. Sure, the install threw a tiny wrench—turns out the unit was a smidge too small. But did I crumble? Never. I picked up a hammer, channeled my inner HGTV heroine, and launched “Project Frame & Fabulous.” Now I’m crowned Queen of the Camper Kingdom, basking in endless hot water, and honestly? I’d pay triple for this thing… but don’t tell the seller. Budget-friendly, soul-soothing, and DIY empowering—this heater’s got it all. ... show more
Reviewed in the United States on May 23, 2025 by Real-Talk Mom: Real-Life, Real-Tired, Real Reviews

  • easy install
Style: GT42 / White
was a direct fit in my 2022 fuzion 419 seem to work great half the price of the original . the original only lasted three years if I get three out of this new one such a deal
Reviewed in the United States on June 27, 2025 by alyssah micallef

  • Do not buy
Style: GT42 / White
I got this water heater after looking over the reviews and ratings. Everything looked great. It's been a nightmare. I have had this sience the 14th of December (it's now the 22nd). The first day I got it I pulled it out of the box and looked over the very shoty manual and instructions. This unit is rated for a 10 amp - 12V DC supply. My old water heater ran off a standard 120V AC with a dedicated 15amp breaker. Should be able to run it through a transform and get it running. I have a few with different ratings so I started with the 120V Ac input with a 12V and 24V output. Wired the heater to the 12V as that's what the manual says it runs on. Nothing turned on. Continued to step up the power but to no avail. It would not turn on. Tried all the transformers and resistors again from lowest output to a max of 48V AC but could not get it to even try to turn on. Came to the conclusion it's just a faulty unit and I need to exchange it. Contacted Amazon to find out they won't exchange it. I can process a refund for a chance to get my money back but that's not even guaranteed and can take up to 30 days after they receive it. Just tired of the cold showers and crap service. Can't find the phone number to the company anywhere in the manual or instructions either. ... show more
Reviewed in the United States on December 23, 2024 by Cody

  • Works great... So far
Style: GT42
So far it's great! Was a very snug fit and had to make a home Depot run for some fittings. Heats great finally a long hot shower! Now we wait to see how long it last and how much propane it uses.
Reviewed in the United States on June 28, 2025 by Joe

  • Quality product
Style: GT42
Just installed water heater today. Pretty straight forward instructions. Just remember this unit runs on 12v not 120v. Also hard water will ruin this heater so get a water softener if you don't already have one. Installation took 4 hours not including removing old heater. Make sure you check for gas leaks with soapy water before turning heater on. ... show more
Reviewed in the United States on June 7, 2025 by Nick F. Nick F.

  • Great Upgrade!
Style: GT42 / White
Best upgrade I have done to my camper. Was able to use existing wiring to old water heater to install controller behind mirror where the switch was. Looks and works well. Only issue with this is if you have inconsistent water pressure. It will turn off on low water flow and your shower encounters a cold surprise. If you have constant pressure you're fine. The issue is from my home made well not having a regular on it yet. Use in camp grounds or simply using the pump from the fresh water tank fixes this problem. I do not think it's a design flaw on the product but be aware of how it operates if you have conditions close to mine. ... show more
Reviewed in the United States on February 1, 2025 by Travis W.

  • Great
Style: GT42
Makes the water hot
Reviewed in the United States on July 1, 2025 by Mike

  • Full time hot water in my rv
Style: GT42 / White
Looks great, works great. I love it,!
Reviewed in the United States on June 20, 2025 by Amazon Customer

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