Best Outdoor Tankless Water Heaters In November 2024

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In this review, we evaluate the Best Outdoor Tankless Water Heaters available today. We have also included a comprehensive guide that helps you pick the best product. We hope that by going through the top 10 Best Outdoor Tankless Water Heaters reviews below, you can effectively narrow down your choice and find the most appropriate one you need.

To help you in your search, we have completed this list of the Best Outdoor Tankless Water Heaters.

Top Rated Best Outdoor Tankless Water Heaters Of 2024

Rank	Product Name	Score
1	Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation Buy Now	9.7 Buy Now
2	Rinnai V65iN High Efficiency Tankless Hot Water Heater, 6.5 GPM - Natural Gas: Buy Now	9.5 Buy Now
3	Rinnai RL94iN Natural Gas Tankless Water Heater Buy Now	9.1 Buy Now
4	Rinnai RU199iN Sensei Super High Efficiency Tankless Water Heater, 11 GPM - Natural Buy Now	8.8 Buy Now
5	Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe Buy Now	8.6 Buy Now
6	20H Outdoor 6.0 GPM Natural Gas Tankless Water Heater Buy Now	8.3 Buy Now
7	Rheem RTG-84XLN-1 Outdoor Tankless Natural Gas Water Heater for 2 - 3 Bathroom Buy Now	8.1 Buy Now
8	Rinnai RL Series HE+ Tankless Hot Water Heater: Outdoor Installation Buy Now	7.8 Buy Now
9	Noritz NR50ODNG Outdoor Tankless Water Heater, max. 120,000 Btuh, 5.0 Gpm - Natural Buy Now	7.5 Buy Now

1. Rinnai V Series HE Tankless Hot Water Heater: Outdoor Installation

• Residential factory warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
• V65en he high efficiency tankless hot water heater - natural gas: outdoor installation only
• Endless hot water for your entire home
• Control-r 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.
• Up to 6.5 gpm hot water flow rate (varies by groundwater temp)

2. Rinnai V65iN High Efficiency Tankless Hot Water Heater, 6.5 GPM - Natural Gas:

• Endless hot water for your entire home
• V65in he high efficiency tankless hot water heater - natural gas: indoor installation only
• Up to 6.5 gpm hot water flow rate (varies by groundwater temp)
• Residential factory warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
• Control-r 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.

3. Rinnai RL94iN Natural Gas Tankless Water Heater

• 10,300 btu (minimum) / 199,000 btu (maximum)
• Up to 9.4 gpm hot water flow rate (varies by groundwater temp)
• Circ-logic technology allows you to set recirculation patterns that coincide with your typical habits.
• Natural gas tankless water heater for indoor installation only
• Residential factory warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts).
• Endless hot water for your entire home, right when you need it.

4. Rinnai RU199iN Sensei Super High Efficiency Tankless Water Heater, 11 GPM - Natural

• Circ-logic technology allows you to set recirculation patterns that coincide with your typical habits. hot water is available when you need it!
• Ru199in sensei se+ super high efficiency tankless hot water heater - natural gas: indoor installation only
• Residential factory warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
• Up to 11 gpm hot water flow rate (varies by groundwater temp)
• Endless hot water for your entire home
• 15,000 btu (minimum) / 199,000 btu (maximum)

5. Rinnai RUC98iN Ultra Series Indoor Natural Gas Tankless Water Heater, Twin Pipe

• Ultra low nox emissions
• Up to 0.96 energy factor/up to 0.92 uniform energy factor
• Indoor installation only. fuel type: natural gas.
• The space-saving design allows indoor installation type
• 199,000 max btu
• Concentric or pvc venting option

6. 20H Outdoor 6.0 GPM Natural Gas Tankless Water Heater

• Best in class 10-year product warranty offers peace of mind that the eccotemp 20h will withstand the time and use you need. the eccotemp 20h can be complemented with our patented one of a kind ez-flush descaling kit to ensure your tankless water heater is running at maximum efficiency all year long.
• Rated at 6.0 gpm at 150,000 btu with a temperature rise of 38 degrees this ultra-efficient tankless water heater is ideal for just about every single-family home in the us and canada. with advanced incoming and outgoing water temperature sensor technology you always have total confidence when it comes to safety.
• Advanced generation 3 computer board with high performance processing and smart adjust technology built in. our proprietary developed programming meets and exceeds todays consumer demand needs.
• Csa certified for installation in the us and canada. this tankless water heater meets and exceeds all safety and efficiency requirements according to the doe. with an energy factor rating of .83, you can have peace of mind knowing this tankless water heater is ideal for individuals looking to save money.
• Rated for 2-3 applications used simultaneously means that taking a shower and running two sinks at the same time is effortless. the eccotemp 20h is ideal for normal hot water heating applications in any size residential single-family home.

7. Rheem RTG-84XLN-1 Outdoor Tankless Natural Gas Water Heater for 2 - 3 Bathroom

• For use outdoors with freeze protection up to -30 degrees
• Fuel type: natural gas
• Exclusive hot start programming minimizes cold water burst by staying in ready-fire state
• Exclusive water savings technology conserving up to 1, 100 gallons per year
• Recirculation pump ready kit ready
• 157, 000 btu (gas consumed per hour)

8. Rinnai RL Series HE+ Tankless Hot Water Heater: Outdoor Installation

• Rl94en he+ high efficiency tankless hot water heater - natural gas: outdoor installation only
• Residential factory warranty - 120 months (heat exchanger), 12 months (labor), 60 months (parts)
• Up to 9.4 gpm hot water flow rate (varies by groundwater temp)
• Endless hot water for your entire home
• Circ-logic technology allows you to set recirculation patterns that coincide with your typical habits. hot water is available when you need it!

9. Noritz NR50ODNG Outdoor Tankless Water Heater, max. 120,000 Btuh, 5.0 Gpm - Natural

• Endless hot water
• Ideal for outdoor applications
• High efficiency
• Low nox