The Best RV Tankless Water Heaters (Review) in 2023 | Autance

Starting off out list is RV equipment giant, Takagi, with their affordable and reliable tankless heater. Its compact and solid design can offer a flow rate of up to 6.6 GPM (gallons per minute), more than enough to supply two bathrooms at once in warmer climates.

 The heater is gas fired, and features venting with category III stainless steel. It includes both a remote control and power cord as standard, helping you stay in control with ease. The heater is also packed with handy safety features: it’s protected against both freezing and overheating, and equipped with its own surge protector. The device can also provide diagnostic codes for easy troubleshooting. With a five year parts warranty, you can rest assured this solid heater is built to last, too.

This portable gas water heater is designed for RVs, boats, and camping. It has several safety features, including a flame failure device and anti-freezing and overheating protection. The unit automatically shuts off the gas supply during unexpected flameouts. It is lightweight and compact and features a mounting bracket for hanging. Installation takes just minutes.

The unit doesn’t require preheating and has a maximum power output of 41,000BTU/Hr. It requires just 2.5 PSI of water pressure to start and provides 1.58 gallons of hot water per minute. You can adjust both the heat and the water flow. The heater also features energy saving technology and advanced combustion technology to minimize gas consumption and noise.

This electric tankless water heater from EcoSmart can heat up to two gallons of water per minute or the equivalent of one sink and one shower head. It features a digital temperature control that allows you to change the temperature in one-degree increments. If used in cold climates, it’s a bit limited in the number of fixtures it can heat simultaneously.

The unit features patented self-modulating technology and is 99.8-percent energy efficient. It has an activation flow of 0.3 GPM and is 11Kw at 220 volts, which is equal to 13kw at 240 volts. The manufacturer also provides a lifetime warranty, which provides some peace of mind should something go wrong with the tank.

This gas portable hot water heater is designed for RV use. It is quick and easy to set up and doesn’t require an electrical hookup. It features a flow rate of 2 GPM and automatically shuts down the gas if exposed to unexpected flameout. It also features a flame failure device, anti-freezing protection, and overheating protection for safety.

The unit has a simple design, so it’s easy to use and isn’t an eyesore. The heater exchanger and main burner incorporate energy-saving and combustion technology to minimize gas consumption and burning noise. It starts under low water pressure and provides a stable water flow under high pressure.

This suburban RV water heater is the next option to make our list. It runs on standard liquid propane gas, and can provide users with 12,000 BTU (British Thermal Units) of heat over an hour. The steel tank is equipped with an anode rod to absorb the corrosive effects of electrolysis, ensuring it lasts even with frequent use.

The heater is contained within one-peice, die-formed housing, which effectively protects its connections while simultaneously offering easy access for repairs. Because it’s quite simple, functionally speaking, there’s very little to go wrong – especially since it doesn’t require any electricity to operate.

Marey’s tankless water heater is another option to catch our eye. Its impressive compact and lightweight design is easy to install on your RV, and won’t weigh you down. As well as providing hot water on demand, the heater allows you to regulate water and gas flow to achieve your optimum temperature.

It can supply up to 3.1 GPM, and run on either propane or natural gas. For ease of use, it’s activated by water pressure alone, and requires no electricity to function. Marey’s heater also boasts an impressive 87% efficiency rating, making it ideal for the eco-conscious traveller. Every heater comes with a five year warranty as standard, too, so you can rest assured it’s built to last. RV owners who have tried the heater agree; it’s well designed, and easy to install.

The next propane tankless water heater to make our list is this offering by Girard. The powerful heater can be used comfortably throughout the year, providing up to 42,000 BTUs of heating power. It features a quiet, brushless motor, designed to run smoothly in the background. It is also protected against freezing, so you can use it even in chilly weather worry free.

The heater also has its own microprocessor, which monitors the incoming cold water temperature, allowing the device to put out consistently warm water – so you won’t experience any nasty surprises! RV enthusiasts love the long, hot showers the heater can power, and were impressed with its ease of installation and longevity. 

If you’re looking for something a little more powerful for static homes, Rinnai have you covered. Their outdoor tankless water heater runs on natural gas, and utilises condensing technology for greater efficiency – hence greater savings!

In fact, the heater can achieve up to 97% thermal efficiency, saving you a considerable amount of gas. Rinnai’s device also meets California and Texas NO_x emission standards, so you can shower safe in the knowledge that your activities are having as little impact on the environment as possible. Users also report saving up to $50 in fuel every month, meaning the device pays for itself in no time!

Last but not least, is Camplux’s propane hot water heater. This lightweight and versatile option is perfect for providing you with hot water wherever you go. The compact design is super efficient too, saving 11.5% more energy than a conventional tank heater. Its maximum power output is 68,000 BTU per hour (or 2.64 GPM), giving you more than enough hot water for showers, dishes, and even baths.

The heater also possesses a plethora of safety features: a flame failure device, anti-freezing protection, and protection against overheating. Everything you need to set up your new heater is included, too – including a CSA approved gas regulator and the necessary adapters. Once installed, it’s easy to use, too. Simple dials allow you to conveniently take control of the temperature and pressure. Finally, the device has been tested at elevations of up to 2,000 feet, so you can use it in a huge variety of places