Best Outdoor Tankless Gas Water Heater

Our Top 20 Best Outdoor Tankless Gas Water Heater list was created by The Man Post founder, Paul Crouch, to help users find products that are useful, affordable, and available. The list is updated every month.

Best Outdoor Tankless Gas Water Heater

Rheem RTG-84XLN-1 Performance Mid-Efficiency Tankless 84 Outdoor Water Heater, Gray

$838.95  in stock
1 used from $1,639.99
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use outdoors with freeze protection up to -30 degrees

Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM

$618.19  in stock
4 new from $618.19
Amazon.com
as of June 19, 2022 9:05 am

Features

  • 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

Home Tankless Water Heater Natural Gas, Camplux Pro 5.28 GPM Natural Gas Instant Water Heater, Gas Hot Water Heater for 3-4 Persons Whole Home, Outdoor Installation, White

$599.99  in stock
2 new from $599.99
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • On-Demand Tankless Water Heater-Camplux advanced 5.28 GPM high efficiency flow control natural gas tankless water heater delivers 5.28 gallons per minute of on-demand endless hot water to suit medium- and smaller-sized homes. Automatically activates on water pressure between 7.0-150 PSI.
  • Constant & Sustainable Hot Water Solution -CSA certified balanced combustion design ,features with over-high wind pressure safety protection,Ipx4 water resistant protection, over-loaded electric protection,fan failure protection, equipped with PCB start up self-test &real-time intelligent monitoring, timely warning of potential gas fire and hydro power to ensure your family's safety.
  • Affordable & Efficient Savings -PCB frequency conversion intelligent control, temperature intelligent adjustment, environmental protection and durability, truly outstanding energy saving. Man-machine dialogue, heating without waiting. This residential constant model saves time, money and energy while producing safe, endless hot water for whole home at an affordable rate.
  • High Thermal Efficiency & High-Rise Wind Resistance-Phosphorus deoxidized copper heat exchanger with high temperature and corrosion resistance technology for full combustion and high thermal efficiency up to 92% . It can resist grade 8 wind speed and 240Pa high anti-wind pressure. Additionally, a wind pressure sensor is added to perceive the external wind force in real time and automatically adjust the fan, flame and maintain stable combustion.
  • Considerate Customer Service -Here at Camplux, customer service is everything! We offer 24 shift hours customer service make the customer experience easy and fast through our live chat, phone support & our online helpdesk. Have a question? Give us a call at (844) 538-7475.

Rheem Mid-Efficiency 7.0GPM Outdoor Natural Gas Tankless Water Heater

$723.08  in stock
Amazon.com
as of June 19, 2022 9:05 am

Features

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 160, 000 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use outdoors with freeze protection up to -30 degrees

Rheem Non Condensing RTG-95XLN-1 9.5 GPM Outdoor Natural Gas Tankless Water Heater

$1,033.80  in stock
Amazon.com
as of June 19, 2022 9:05 am

Features

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 199, 900 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use outdoor only

Rinnai RL94eN Natural Gas Tankless Hot Water Heater, 9.8 GPM

$1,525.61  in stock
6 new from $1,525.00
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • 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

Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater

$1,099.00  in stock
5 new from $1,099.00
1 used from $1,850.00
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 199, 900 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use indoor only

Propane Gas Tankless Water Heater, FOGATTI Outdoor 8.1 GPM, 180000 BTU White Instant Hot Water Heater

$699.00  in stock
Amazon.com
as of June 19, 2022 9:05 am

Features

  • We recommend that all installations of units must be done in accordance with the local building and plumbing codes of the installation location and installation be done by a licensed professional.
  • The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
  • 180,000 BTU high heating capacity and maximum 8.1 GPM. It is suitable for 3-5 outlet points, which can satisfy whole family. UEF over 0.82, the high energy conversion rate can effectively reduce energy loss.
  • Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced technology, superior safety and durability.
  • Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind. Compact design for easy installation.

Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation

$1,854.74  in stock
4 new from $1,854.73
1 used from $1,499.00
Amazon.com
as of June 19, 2022 9:05 am

Features

  • 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 11 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.

MAREY GA24CSANG 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use Natural Gas Tankless Water Heater, White

$649.99
$612.58
 in stock
5 new from $612.58
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • CSA Certified
  • LED Touch Screen Computerized Safety
  • Flow activation
  • Oxygen free copper heat exchanger
  • Stainless Steel Venting Exhaust

Rheem Prestige High Efficiency 9.5GPM Outdoor Natural Gas Tankless Water Heater

$1,099.00  in stock
2 new from $1,099.00
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 199, 900 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready
  • For use outdoors with freeze protection up to -30 degrees

Rinnai RL94eP Propane Gas Tankless Hot Water Heater, 9.8 GPM

$1,525.61  in stock
5 new from $1,525.61
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • 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

VIVOHOME 2.64GPM 10L Outdoor Portable Propane Gas Tankless Water Heater Digital Display RV Camping Water Heater Overheating Protection Easy to Install White

$209.99  in stock
Amazon.com
as of June 19, 2022 9:05 am

Features

  • PORTABLE AND EASY TO USE - Our outdoor gas water heater has a digital display where the water temperature is displayed in Fahrenheit (℉); Standing at a proper size of 25×13.4×6.5 inches and a light weight of 17.38 LBS, it is easy to carry; A pre-installed handle enabling it to be hung firmly on anything; Equipped with a quick connector and two 1/2’’ to 3/4’’ adapters, it is easy to install or uninstall to meet the needs of RV
  • INSTANT HOT WATER - No need to wait for preheating and no need to worry about limited hot water; Our gas water heater allows you to immediately enjoy the water temperature you set at any time and any location; Heating up quickly, it outputs 2.64 gallons of instant hot water per minute to meet your various demands; The applicable water pressure is 3~145 PSI(≥0.8GPM) (if the water pressure is lower than 3 PSI, the water heater cannot ignite)
  • SAFE AND SOUND - This tankless water heater does not need to be plugged in and there is no risk of electric shock; With CSA-certified gas pipe and more than 4 safety protection methods such as overheating protection, antifreeze protection, flameout protection, and anti-dry protection, the water heater provides comfortable and safe bathing conditions for customers
  • POWER EFFICIENT - Adopting advanced combustion technology design, it reduces gas consumption and combustion noise; With automatic ignition and flameout modes, the tankless water heater could automatically ignite or put out as you turn on or turn off the shower head; With this unique design, our heater can save the energy and ensure your safety at the same time
  • WIDELY APPLICATION - Mainly used for outdoor showering with hot water, soaking feet during a trip, washing pets during camping, washing your car or boat outdoors, etc.; With the help of exhaust ducts and exhaust fans, it can also be used indoors and in poorly ventilated places

Natural Gas Tankless Water Heater, FOGATTI Indoor 6.3 GPM, 145000 BTU White Instant Hot Water Heater

$599.00  in stock
2 new from $599.00
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • We recommend that all installations of units must be done in accordance with the local building and plumbing codes of the installation location and installation be done by a licensed professional.
  • The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
  • 145,000 BTU high heating capacity and maximum 6.3 GPM. It is suitable for 2-3 outlet points, which can satisfy whole family. UEF over 0.82, the high energy conversion rate can effectively reduce energy loss.
  • Excellent quality CSA certified in the United States and Canada. Adopting the world's most advanced technology, superior safety and durability.
  • Using built in forced exhaust fan at the bottom ensures stable combustion and eliminates the influence of external wind. Compact design for easy installation.

Eccotemp 45H-LP 6.8 GPM Outdoor Propane Tankless Water Heater, White

$594.99  in stock
2 new from $594.99
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • Whole home outdoor, Propane Gas powered tankless water heater, rated at 6.8 GPM that activates only when in use, making it an energy effiecient and perfrect for any home. apartment or townhome!
  • The Eccotemp 45H/HI series is CSA Certified for US and Canadian use guaranteeing a safe, easy, and enjoyable installation experience.
  • No venting required for this model, making the installation process quick, easy and hassle free.
  • The outdoor installation will save space in your home and because it is compact and quiet, you will barely notice it is there.
  • Comes with a Temperature and Pressure Relief Valve, a Gas Shut-Off Valve and is equipped with 3/4" NPT fittings.

Camplux 2.64 GPM Tankless Propane Water Heater, Outdoor Portable Gas Water Heater with Overheating Protection, Instant Propane Hot Water Heater for RV, Camping, Cabins, Barns, White

$279.99  in stock
2 new from $279.99
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • 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.

Rinnai RUR199eN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Outdoor Installation

$2,244.11  in stock
Amazon.com
as of June 19, 2022 9:05 am

Features

  • 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 11 GPM hot water flow rate for a powerful, constant stream
  • Instant Heating: ThermaCirc360 technology provides faster hot water with a built-in recirculation pump, timer and thermal bypass valve - ideal for homes without a dedicated return line
  • Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively. Wifi monitoring.

Rheem RTG-84XLP-1 Performance Mid-Efficiency Tankless 84 Outdoor Water Heater, Gray

$850.78  in stock
2 new from $850.78
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready.8.4 gal./min. at 35° F rise max
  • For use outdoors with freeze protection up to -30 degrees

Camplux 16L Outdoor 4.22 GPM Digital Display Propane Gas Tankless Water Heater

$399.99  in stock
2 new from $399.99
1 used from $315.99
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • 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.

Rinnai RL75eN Natural Gas Tankless Hot Water Heater, 7.5 GPM

$1,254.51  in stock
5 new from $1,254.51
Free shipping
Amazon.com
as of June 19, 2022 9:05 am

Features

  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance 7.5 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

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