Best Outdoor Tankless Water Heater 2022 – Our Picks

We’re here to take the headache out of shipping online. We’ve gone through all of the user reviews and have come up with our roundup to help make your choice easier. With so many options available to consumers, it’s more important than ever to have a list that you can trust!

The Best Outdoor Tankless Water Heater – Our Official Roundup

1
Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary.
  • Optimal Water Pressure: High-performance up to 5.3 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
2
Rinnai RL94iN Natural Gas Tankless Hot Water Heater, 9.8 GPM
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance 9.8 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: Circ-Logic technology enables recirculation patterns that coincide with your typical habits; Wi-Fi monitoring creates hot water on demand
  • Guaranteed to Last: 12-, 5-, and 1-year residential and 5-, 5-, and 1-year commercial factory warranty for heat exchanger, parts, and labor respectively
3
Camplux 2.64 GPM Tankless Propane Water Heater, Outdoor Portable Gas Water Heater with Overheating Protection, Instant Propane Hot Water Heater for RV,...
  • Compact,Light Weight Portable Design-12.8 (L)*6.1(W)*21.65(H) inch ,Weight-19 lb. Compact and portable design perfect for barns,cabins,outdoor instant hot shower and road trips.
  • Easy Installation for Instant Hot Water-It only takes you a few minutes to get 2.64 gallons per minute of instant hot water. The camplux portable water heater lights when water pressure between 3.0-110 PSI, low water pressure is perfect for campings and remote cabins.
  • CSA Safety Testing Standard Ensure Your Safety-Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. The anti-freezing drain plug discharges the residual water to avoid freezing in cold areas for long-time maintenance. Gas supply automatically shut off when high water temperature protection over 167 °F.
  • Power Efficient & Energey Saving -Maximum power output 68,000btu/hour, you will get instant endless hot water easily wherever you are. Compact and lightweight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
  • Important Tips -To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
4
Camplux 5L Outdoor Portable Water Heater, 1.32 GPM Tankless Propane Gas Water Heater for RV, Camping, Barns, White
  • CSA Safety Standard -CSA safety standard approved portable tankless water heater,flame failure device, anti-freezing protection, over heating protection to ensure the family safety. Automatically decrease water pressure between 3.0-110 PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. The water heater will shut off automatically when high water temperature protection over 176 °F.
  • Lightweight Portable Design-Compact size weights 10 lbs with portable handle for easily carry. Hang it using the mounting bracket on the top/back of the gas water heater. It only takes you a 15 minutes to install the propane water heater.
  • Instant Hot Water- Maximum power output 28,000btu/hour, you can get 1.32 gallons instant endless hot water easily wherever you are. No need to preheat before operating the tankless water heater. As soon as you turn on the tap, the water flows with your desired temperature.
  • Energy Saving-Compact and light weight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are designed with advanced combustion technology to decrease gas consumption and burning noise.
  • Important Tips -To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
5
Rinnai RU180eN Natural Gas Condensing Tankless Hot Water Heater, 10 GPM
  • Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: Up to 10 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: Equipped with Circ-Logic - Pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively; Wifi monitoring
6
Camplux 2.64 GPM Portable Propane Water Heater, Tankless Propane Gas Water Heater with Digital Display, On Demand Hot Gas Water Heater for Campings, Road...
  • Compact,Light Weight Portable Design-12.8 (L)*6.1(W)*21.65(H) inch ,Weight-23.85 lb. Compact and portable design perfect for barns,cabins,outdoor instant hot shower and road trips.
  • Easy Installation for Instant Hot Water-It only takes you a few minutes to get 2.64 gallons per minute of instant hot water. The camplux portable water heater lights when water pressure between 3.6-110 PSI, low water pressure is perfect for campings and remote cabins.
  • Multiple Protection Ensure Your Safety-Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. The anti-freezing drain plug discharges the residual water to avoid freezing in cold areas for long-time maintenance. Gas supply automatically shut off when high water temperature protection over 167 °F.
  • Power Efficient & Energey Saving -Maximum power output 68,000btu/hour, you will get instant endless hot water easily wherever you are. Compact and lightweight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
  • Important Tips -To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
Sale7
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
3,396 Reviews
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
  • Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
  • Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
  • EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
8
Camplux 16L Outdoor 4.22 GPM Digital Display Propane Gas Tankless Water Heater
  • Easy To Install -It only takes you 5 minutes to set up and it comes with all necessary accesories.To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
  • 4.22 Instant Hot Water-It only takes you a few minutes to get 4.22 gallons per minute of instant hot water. The camplux portable water heater lights when water pressure between 4.0-110 PSI, low water pressure is perfect for campings and remote cabins.
  • 6-in-1 Protection Ensure Your Safety-Flame failure device, anti-freezing protection, over heating protection to ensure the family safety. The anti-freezing drain plug discharges the residual water to avoid freezing in cold areas for long-time maintenance. Gas supply automatically shut off when high water temperature protection over 167 °F.
  • Power Efficient & Energey Saving -Maximum power output 11,000btu/hour, you will get instant endless hot water easily wherever you are. Compact and lightweight structure with 11.5% energy saving technology. The propane water heater exchanger and main burner are desinged with advanced combustion technology to decrease gas consumption and burning noise.
  • Important Tips -To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. The tankless water heater will "caught on fire "with improper operation. Always check gas leakage before operation.
9
Marey GA10LP Power 10L 3.1 GPM Propane Gas Tankless Water Heater, Liquid, White
  • This unit is flow activate
  • Save up to 60% on electricity bills for water heating
  • Compact design saves space and is easy to install almost anywhere
  • No electrical connection is required so it's perfect alternative for those homes experiencing frequent power outages
  • Unlimited hot water whenever is needed
10
Tankless Water Heater Propane Shower, 2.64GPM/10Litre Capacity, 6-IN-1 Multiple Protection, 7 More Usage Scenarios, Low Pressure Startup, Black…
  • 🍏【7 MORE USAGE SCENARIOS】Perfect heater shower for before and after swimming in your pool or lake. Your dog will love the spa-like experience. No more cold outdoor baths with the hose - you can use the detachable shower head to easily wash your pets with warm water they will appreciate. Perfect for Outdoor Shower, Portable Hot Water Sink, Portable Pet Shower, RV/SUV/MPV, Beach Bathing Boxes, Campsites, Hunting Cabins, Boats, Kid Pools, or just around your house
  • 🍏【FULLY EQUIPPED】No need to look around for accessories, this tankless water heater comes with CSA approval Gas Regulator, high pressure Shower Head with 59in(1.5m) extended Long Stainless Steel Hose and Shower Holder, Wrenches, US Universal Gas Connector(Fixed already), Garden Hose Connectors, Teflon Tape, and Fixing Kits
  • 🍏【EASY TO INSTALL LOW PRESSURE STARTUP】Just need 3.6PSI of water pressure, No electricity needed, the ignition is with 2 pieces D cell batteries(not included). Connect gas supply water supply, now you and your lovely family lovely pet can enjoy endless hot water anywhere anytime.
  • 🍏【6-IN-1 MULTIPLE PROTECTION】Passed UL-307B Safety Test and FDA Food Contact Article Test, ensure home safety, Oxygen depletion safety shut-off protection, Over-heating protection, Anti-freezing protection, Flameout protection, Thermal protection, Strong wind protection device and it can withstand wind speeds of up to 3 meters per second outdoors.
  • 🍏【LOVE ENDLESS HOT SHOWERS】Other tankless water heater on the market have limited support and poor quality. This outdoor tankless water heater is the real deal! And if you have any questions, concerns or issues, our friendly and helpful support team can be reached at phone call and mail.

What To Know Before Shopping For The Best Outdoor Tankless Water Heater

Our Preferred Shopping Partner – You’ll notice that as you click on the products on our lists that youll be taken to the largest online retailer in the world. We chose Amazon as our product partner because of it’s brand recognition, and great customer service. You wont have to worry about getting an inauthentic Outdoor Tankless Water Heater when you purchase through our website. 

Pricing – We always consider pricing, and work to provide you the best seling items, at the best prices, however we do not control the prices of items on our shopping partners. We work to make it easy for you to click through and find the latest, most up to date prices. 

Consider Your Specific Application – Make sure that you are shopping for your specific needs. What is best for one person may not always be best for you. Don’t let a lower price on an item put you off, if that item has the features and design that are best suited for you. 

Ratings and Reviews – Sorting through hundreds of reviews is both time consuming, and taxing! We’ve already done that, and taken the tough work out of shopping so that you are left with a list of the best selling, best reviewed Outdoor Tankless Water Heater to choose from. You can also easily click through and see al of the reviews on our shopping partner’s website 

How To Chose The Right Outdoor Tankless Water Heater For You

There’s a ton of choices for just about anything you shop for, so what should you actually be considering? In addition to the aforementioned attention to your specific needs, there’s really only a few considerations – price, quality/dependibility, and the reviews of your peers. If you can find items that meet your needs, are priced in your range, and have reviews that showcase the quality, then you should feel confident in making your purchase!

Is Buying a Outdoor Tankless Water Heater Really Worth It?

The one thing we can’t do, is choose for you. We feel that if an item made one of our lists, it has merit as something that is “worth it”, as long as it meets your needs, and fits inside your pricerange. We’re here to give you the best possible choices, and while we feel it’s definitely worth it, we want you to as well. 

Is The Most Expensive Outdoor Tankless Water Heater Always The best?

We covered a bit of this earlier, and the answer is no, because often, there is no “best”, but only a “best” for you! You need to decide which product has the best chance of making your life easier and meeting your needs, regardless of price. 

Wrapping Up

Our goal is simply to help you make better shopping choices, and we hope that our list and advice do just that. We are here to empower you, the consumer, with the right knowledge, and the right items to get the job done. We’re here to be the expert in your corner and hope to be able to provide you with an excellent shopping experience. If there is anything we can do to make your life easier, please let us know!