Best Outdoor Water Heaters of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 3, 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

Camplux Tankless Water Heater, Portable Propane Outdoor Camping Water Heater Cover #TOP 1
Camplux Tankless Water Heater, Portable Propane Outdoor Camping Water Heater
ftb score rating icon 9.9
Rheem RTG-70XLP-3 Tankless Water Heater Cover #TOP 2
Rheem RTG-70XLP-3 Tankless Water Heater
ftb score rating icon 9.8
GASLAND Outdoors BE158 Tankless Water Heater Cover #TOP 3
GASLAND Outdoors BE158 Tankless Water Heater
ftb score rating icon 9.6

Top 10 Outdoor Water Heaters

Camplux Tankless Water Heater, Portable Propane Outdoor Camping Water Heater

Camplux Tankless Water Heater, Portable Propane Outdoor Camping Water Heater Cover
CAMPLUX Tankless Water Heater Outdoor, 1.32 GPM Portable Propane Camping Water Heater, 5L, AY132, White

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.

What We Like
Portable and lightweight design
CSA Approved with 6-in-1 protection
Easy to set up within 10 minutes
#TOP 2

Rheem RTG-70XLP-3 Tankless Water Heater

RTG-70XLP-3
Gray
7.0 GPM
Rheem RTG-70XLP-3 Tankless Water Heater Cover
Rheem RTG-70XLP-3 High Efficiency Non-Condensing Outdoor Tankless Liquid Propane Water Heater, 7.0 GPM

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.

What We Like
Continuous hot water supply
Energy-efficient operation
Water-saving technology
Eliminates cold-water bursts
Compact and lightweight design
#TOP 3

GASLAND Outdoors BE158 Tankless Water Heater

BE158
White
GASLAND Outdoors BE158 Tankless Water Heater Cover
Tankless Water Heater, GASLAND Outdoors BE158 1.58GPM 6L Portable Gas, Propane Water Heater, Overheating Protection, Easy to Install, Use for RV Cabin Barn Camping Boat, White

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.

What We Like
Portable and easy to install
Produces 1.58 gallons of hot water per minute
Equipped with multiple safety features

Rinnai RX199iN Tankless Water Heater

RX199iN
Silver
11.1 GPM
Rinnai RX199iN Tankless Water Heater Cover
NEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 11.1 GPM, 199,000 BTU

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.

What We Like
Versatile indoor/outdoor installation
High hot water output
User-friendly maintenance features
Energy efficient
#TOP 5

Portable Tankless Water Heater by GASLAND Outdoors

BE158S
Silver
1.58 GPM/6L
Portable Tankless Water Heater by GASLAND Outdoors Cover
Portable Tankless Water Heater, GASLAND Outdoors 6L 1.58GPM Propane Water Heater for RV Camping, Overheating Protection

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.

What We Like
Powerful 6L propane water heater that can produce up to 1.58 gallons of hot water per minute
Multiple safety features including over-heating protection, low water flow protection, dry combustion protection, anti-freezing protection, high water pressure protection and flame failure device
CSA certified and safe to use as per Canadian and US Standard
#TOP 6

Orbek Outdoor Propane Tankless Water Heater

Orbek
HS120
White
Orbek Outdoor Propane Tankless Water Heater Cover
Propane Tankless Water Heater Outdoor - ORBEK Outdoor Installation Up to 5.1 GPM 120,000 BTU - CSA Certified 120 Volt On-Demand Instant hot 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.

What We Like
Endless hot water supply
Weather-resistant design
Advanced safety features
Energy-efficient operation
#TOP 7

Amzgachfktch Portable Tankless Water Heater

Amzgachfktch
JSD001-6LB
Black
Amzgachfktch Portable Tankless Water Heater Cover
Tankless Water Heater Propane, Outdoor 1.58 GPM 6L Portable Water Heater with Handle, Instant Propane Water Heater with Overheating Protection, Camping Gas Water Heater for RV Cabin Barn Camping Boat

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.

What We Like
Portable and lightweight
Instant hot water
Multiple safety features
Ideal for outdoor use
#TOP 8

Forimo Tankless Water Heater

Water Heater-011
Black
Forimo Tankless Water Heater Cover
Tankless Water Heater 5.26GPM 20L Outdoor Portable GasHot Water Heater Instant Propane Water Heater with Digital Display Multi-Protection for Camping Trips Boat Cabins

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.

What We Like
Premium and safe
Efficient and energy-saving
Portable and lightweight
#TOP 9

Camplux Portable Gas Water Heater

BW264S
White
10 Litre
Camplux Portable Gas Water Heater Cover
CAMPLUX 2.64 GPM Propane Portable Gas Water Heater, 68,000 BTU Outdoor Tankless Camping Water Heater with Digital Display, White

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.

What We Like
Safety features including flame failure device, anti-freezing protection, and over heating protection
Lightweight and portable design for easy carrying and installation
11.5% energy saving technology for efficient use of propane
Instant hot water without the need for preheating
Compact size
#TOP 10

Kohree 6L Propane Tankless Water Heater

KR5506
White
Kohree 6L Propane Tankless Water Heater Cover
Kohree Tankless Water Heater Propane, 6L 1.58 GPM Portable Tankless Water Heater with Handle, On Demand Instant Hot Water Heater with Overheating Protection, for RV Camping, Outdoor Shower, White

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.

What We Like
Instant hot water supply
Multiple safety features
Lightweight and portable
Easy installation
Buying Guide Image

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.

Editor's Notes

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.

Written by
Harry Stack Avatar

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.