10 Best Rv Tankless Water Heaters 2025 in the United States

The FOGATTI RV Tankless Water Heater, InstaShower 8 Plus, is designed with RV enthusiasts in mind, particularly benefiting those who travel to high altitudes. One of its standout features is its capability to function effectively at elevations up to 9,800 feet, which is a significant plus for campers heading to mountainous regions. With a flow rate of up to 2.9 gallons per minute and a powerful heat output of 55,000 BTU, it ensures an uninterrupted supply of hot water, allowing multiple users to shower without running out of hot water quickly—a common issue with traditional tank heaters.

Installation is straightforward, as it can replace various existing water heaters, making it a versatile choice for RV owners looking to upgrade. The inclusion of a pressure relief valve and a wired remote controller further adds convenience, allowing control from a distance.

On the safety front, being CSA certified, it features several protective measures including anti-freezing protection, overheat protection, and an automatic gas shut-off, enhancing user confidence during use. This makes it a reliable option for those concerned about safety while on the road. However, there are some considerations to keep in mind. While its performance is commendable at high altitudes, the reliance on propane means users need to manage fuel levels, which could be a hassle during long trips. Additionally, while it excels in continuous hot water supply, potential users should ensure their RV's plumbing can handle the maximum flow rate without issues.

The FOGATTI RV Tankless Water Heater, InstaShower 7, is designed for RVers seeking an efficient and space-saving solution for hot water needs. With a flow rate of up to 2.5 GPM and a powerful 48,000 BTU output, it delivers a continuous supply of hot water, making it ideal for families or groups who value quick and consistent access to warm showers without the wait associated with traditional tank systems.

One of the standout features is its high-altitude suitability, which allows it to function effectively at elevations up to 9,800 feet—a great asset for adventurous RV travelers. The staged combustion technology also helps prevent overheating and optimizes propane use, ensuring both safety and efficiency during your travels.

Installation is simplified by the inclusion of a 15 x 15 inches door and a remote controller, which minimizes additional costs and hassle. The built-in safety features, including overheat protection, automatic gas shut-off, and anti-freezing protection, add to the reliability and peace of mind for users. Plus, the CSA certification gives further assurance of its safety standards.

The Suburban RV Tankless 60,000 BTU Water Heater (ST-60) is designed to provide an endless supply of hot water, which is a significant advantage for RV users seeking comfort on the road. It uses propane as its energy source, making it suitable for mobile environments where electricity might not always be reliable. The digital user control center allows for easy temperature adjustments, which is a user-friendly feature.

Additionally, the safety aspects are well-covered with Flame Out Protection, Automatic Fan Monitoring, and Scald Protection, ensuring that any malfunctions are immediately addressed to prevent accidents. Another plus is the built-in freeze protection, which is particularly beneficial for those traveling in colder climates. With a maximum temperature of 131 degrees Fahrenheit, it offers sufficient heat for most needs.

However, installation may require professional assistance due to its wall-mounting design and specific dimensions (20 x 12 x 12 inches), making it potentially challenging for DIY enthusiasts. Weighing 23.9 pounds, it is relatively lightweight, which is a favorable attribute for RVs where every pound counts. The Suburban ST-60 provides reliable hot water with excellent safety features and user control, though installation and potential maintenance could be areas of consideration.