10 Best Outdoor Propane Tankless Water Heater 2025 in the United States

The CAMPLUX Portable Water Heater 1.32 GPM is a compact and lightweight solution for outdoor hot water needs, making it ideal for camping, off-grid living, and rural areas. Weighing just 10 pounds and featuring a convenient folding handle, it's easy to transport and set up. Its 1.32 gallons per minute (GPM) flow rate delivers adequate water flow for showers and small-scale cleaning tasks, while the 34,000 BTU rating ensures quick heating to a maximum temperature of 167°F.

The unit is powered by two D batteries, providing ignition without the need for an electrical connection, which enhances its portability and usability in remote locations. Safety is a priority with this model, as it includes six different protective features such as anti-freezing, over-heating, low water flow, and dry combustion protections, along with CSA approval, ensuring safe operation.

It's important to be cautious during installation to prevent gas leakage, and thorough drainage is required if storing the unit in cold climates to prevent freeze damage. While it offers good energy efficiency, specific efficiency ratings are not disclosed. Additionally, the maximum water pressure of 110 PSI might be more than needed for most outdoor scenarios, but the minimum starting pressure of 3.0 PSI is suitable for low-pressure water sources. The CAMPLUX AY132BN is a reliable and user-friendly option for those needing a portable, efficient water heating solution outside.

The Orbek outdoor propane tankless water heater is designed for those looking for an efficient and reliable source of hot water in outdoor settings. With a flow rate of up to 5.1 GPM and a BTU rating of 120,000, it can comfortably service multiple fixtures at once, which is great for larger households or outdoor gatherings. One of its standout features is its ability to maintain a stable water temperature, adjusting rapidly to changes, ensuring a pleasant shower experience.

Safety is a major focus, with the heater being CSA certified and equipped with multiple protections against issues like overheat and water leakage. This can give peace of mind for users concerned about safety while operating in various weather conditions. The device is also designed to withstand harsh elements, including heavy winds and low temperatures, making it suitable for year-round use.

Energy efficiency is another strong point, utilizing high-quality materials for effective heat transfer. This can lead to savings on energy bills over time. The remote control and digital display make it user-friendly, allowing easy adjustments to the temperature settings without the need for constant manual input. However, there are some considerations to keep in mind. While the heater is compact, professional installation is recommended to ensure optimal performance, which may incur additional costs for some users. While it is marketed for outdoor use, those in extremely cold climates may need to take extra precautions to prevent freezing. Additionally, the weight of the unit could be a factor for some users when considering portability or installation.

The Orbek outdoor propane tankless water heater is a strong option for anyone seeking a dependable hot water solution for outdoor use, providing a favorable mix of efficiency, safety, and user-friendly features.

The Rheem RTG-70XLP-3 High Efficiency Non-Condensing Outdoor Tankless Liquid Propane Water Heater is designed to provide a continuous supply of hot water, making it ideal for larger households or those who frequently use multiple hot water sources simultaneously, such as showers and dishwashers. With a maximum flow rate of 7.0 gallons per minute (GPM), it meets the demands of busy families quite well.

One of the standout features is its energy efficiency, as it only activates when hot water is needed, helping to lower energy costs. Additionally, the water-saving setting can potentially save up to 1,100 gallons per year, which is a great benefit for environmentally conscious users. The hot-start programming feature ensures that users won't experience any cold bursts when turning on the hot water, enhancing comfort.

When it comes to size, this model is more compact than its predecessors, with a 19% smaller footprint and a 22% lighter weight, making installation easier and allowing for more flexible placement. It also has impressive side clearance, which can be beneficial in tighter spaces. Potential users should ensure they have the necessary gas setup and consider their temperature preferences before purchasing.