Best Outdoor Water Heaters of 2025

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Outdoor water heaters are a great option for those who need hot water in their outdoor living spaces. These heaters come in a variety of sizes and styles to fit any outdoor setting, from small patios to large commercial properties. They can be powered by natural gas, propane, or electricity, and are designed to withstand the elements. Outdoor water heaters are perfect for outdoor kitchens, hot tubs, and outdoor showers, providing hot water on demand for a comfortable, enjoyable experience. With their efficient performance and durable construction, outdoor water heaters are a smart investment for any outdoor living space.
At a Glance: Our Top Picks
Top 10 Outdoor Water Heaters
Camplux Tankless Water Heater, Portable Propane Outdoor Camping Water Heater
The Camplux Tankless Water Heater is a portable and lightweight design that is perfect for outdoor camping. It has a flow rate of 1.32 GPM, with a temperature raise of up to 114.8℉ (46℃). It is versatile and ideal for off-grid and rural areas. This tankless water heater is CSA Approved with 6-in-1 protection, and it comes with a 1-year guarantee, 5 feet premium on/off shower head, 5 feet gas regulator, 1 set US-standard garden hose, and 1 installation hardware pack. Setting it up takes just 10 minutes. It is important to avoid gas leakage by following the installation instructions and checking for gas leaks before operating. Proper maintenance is necessary to avoid freeze damage.
Rheem RTG-70XLP-3 Tankless Water Heater
The Rheem Tankless Water Heater ensures you always have hot water when you need it, making it perfect for households with multiple users, such as during showers and dishwashing. It operates efficiently, only using energy when you're actually drawing hot water, which helps you save on utility bills. With its water-saving feature, you can reduce your consumption by up to 1,100 gallons a year, contributing to environmental sustainability. Additionally, the hot-start programming eliminates the frustration of cold-water bursts, keeping your water consistently warm and ready for use.
GASLAND Outdoors BE158 Tankless Water Heater
The GASLAND Outdoors BE158 Tankless Water Heater is a portable and easy-to-install propane water heater, with a maximum power output of 41,000BTU/Hr, producing 1.58 gallons of hot water per minute. It can be used for various outdoor activities such as camping, RVing, hunting, and more. The unit is equipped with multiple safety features, including over-heating protection, low water flow protection, dry combustion protection, and anti-freezing protection. The LED display shows the temperature and the unit comes with a 1-year warranty and lifetime customer support.
Rinnai RX199iN Tankless Water Heater
The Rinnai Tankless Water Heater is designed for both indoor and outdoor use, making it versatile for any home. You can enjoy continuous hot water with its compact design, providing up to 11.1 gallons per minute, enough for seven fixtures simultaneously. Its user-friendly interface and Quick Flush feature simplify maintenance, ensuring you have efficient hot water on demand. Additionally, the high energy efficiency rating means you can save on energy costs while enjoying reliable performance. For optimal installation, it is recommended to seek professional help, ensuring everything runs smoothly.
Portable Tankless Water Heater by GASLAND Outdoors
The Portable Tankless Water Heater by GASLAND Outdoors is a powerful 6L propane water heater that can produce up to 1.58 gallons of hot water per minute, making it perfect for camping, RVing, and other outdoor activities. Equipped with multiple safety features, it is CSA certified and safe to use as per Canadian and US Standard. With LED temperature display, it provides accurate temperature readings. It comes with a 1-year warranty against manufacturing defects and lifetime customer support.
Orbek Outdoor Propane Tankless Water Heater
The Orbek Tankless Water Heater offers endless hot water with a powerful capacity of up to 5.1 gallons per minute and 120,000 BTUs. This means you can comfortably run multiple fixtures at once, perfect for busy households. Designed for outdoor use, it withstands harsh weather conditions and operates effectively in low temperatures, ensuring you always have reliable hot water. Safety is a priority with advanced features like overheat protection and water leakage prevention, so you can enjoy peace of mind while using it. Additionally, its energy-efficient design helps save on energy costs, making it a smart choice for your home.
Amzgachfktch Portable Tankless Water Heater
The Amzgachfktch Instant Water Heater is a compact and lightweight solution for on-the-go hot water needs. With its ultra-slim design, you can easily carry it wherever you go. Enjoy endless hot water with a powerful output of 40,000 BTU/hr, ensuring you have warm water instantly at your desired temperature. Its 6-in-1 safety features provide peace of mind, protecting against overheating and other hazards. Perfect for off-grid adventures, this water heater operates on a standard propane tank, making it ideal for camping, RVs, and more.
Forimo Tankless Water Heater
Introducing the Forimo Tankless Water Heater, a premium water heater that provides instant hot water wherever you are. With its advanced combustion technology, this propane water heater is not only efficient but also energy-saving, allowing you to enjoy more hot water for less money. Its portable design makes it perfect for camping trips, RVs, and even pet baths. The Forimo Tankless Water Heater comes with complete accessories including a gas regulator, high-pressure shower head with a long stainless steel hose, and shower holder. With its wide usage and multiple safety features, this water heater is a versatile and reliable choice for all your hot water needs.
Camplux Portable Gas Water Heater
The Camplux 2.64 GPM Propane Portable Gas Water Heater is a safe and efficient choice for outdoor hot water needs. CSA safety standard approved with several safety features such as flame failure device, anti-freezing protection, and over heating protection. The lightweight and portable design make it easy to carry and install, while the 11.5% energy saving technology ensures efficient use of propane. With a maximum power output of 68,000btu/hour, you can get 2.64 gallons instant endless hot water wherever you are without the need for preheating.
Kohree 6L Propane Tankless Water Heater
The Kohree Portable Water Heater delivers instant hot water with a powerful output of 41,000 BTU per hour, making it perfect for outdoor activities like camping or RV trips. With a low water pressure start-up requirement of just 3 PSI, you can enjoy hot showers even in remote locations. Safety is a priority, featuring multiple protection systems to prevent overheating and other hazards, ensuring peace of mind while you use it. Its compact and lightweight design allows for easy transport, so you can take it wherever you need hot water on demand.
Frequently Asked Questions (FAQs)
1. Can I put my water heater outside?
The Short Answer: Absolutely. Not only is it possible to put a water heater outside, but specific models are specifically designed to make it easy for homeowners to do just that.
2. How long do outdoor tankless water heaters last?
Gas-burning tankless water heaters should operate for 20 years or more, two or three times longer than tank-type heaters. Tankless electric units have shorter life spans, on the order of 7 to 10 years.
3. Do outdoor tankless water heaters freeze?
Most indoor and outdoor tankless water heaters have built-in freeze protection against temporary winter temperatures ranging from -5 degrees Fahrenheit to -22 degrees Fahrenheit. This protection cannot withstand long term below freezing temperatures.
During our outdoor water heater research, we found 24 outdoor water heater products and shortlisted 10 quality products. We collected and analyzed 22,925 customer reviews through our big data system to write the outdoor water heaters list. We found that most customers choose outdoor water heaters with an average price of $270.30.
The outdoor water heaters are available for purchase. We have researched hundreds of brands and picked the top brands of outdoor water heaters, including CAMPLUX ENJOY OUTDOOR LIFE, Rheem, GASLAND, Rinnai, Orbek. The seller of top 1 product has received honest feedback from 195 consumers with an average rating of 4.7.

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.