best outdoor tankless water heaters that will change your hot water game

Cheap models disappoint—but Rinnai RX199iN excels in efficiency!

When it comes to the best outdoor tankless water heaters, performance is key. The **Rinnai V53DeP** offers impressive flow rates at 5.3 GPM, while the **Rinnai RX199iN** shines with up to 11.1 GPM and smart technology for optimal energy use.

For those seeking versatility, the **Rheem RTG-70XLN-3** provides a high-efficiency solution with a durable design, perfect for outdoor installations.

Below, we analyze budget, lifespan, and real-user feedback.

Rinnai V53DeP Propane Tankless Water Heater

Tired of running out of hot water during your shower? The Rinnai V53DeP Propane Tankless Water Heater fixes it with its impressive 5.3 GPM flow rate, delivering endless hot water for your household needs.

Why It Works

• On-demand heating ensures you only use energy when you need hot water, cutting down on energy bills and waste.
• Compact design allows for installation in tight spaces, making it perfect for homes with limited room.
• Improved scale detection features enhance the unit’s lifespan, providing long-term reliability.

Trade-offs

• Professional installation recommended may add to the upfront cost, but it ensures optimal performance and safety.
• Premium price compared to traditional water heaters, but it lasts longer and offers significant energy savings.

Overall, the Rinnai V53DeP is worth it for frequent users who need a reliable and efficient hot water solution. Its ability to provide endless hot water while saving space and energy makes it an excellent investment for any home.

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Rinnai RX199iN Tankless Water Heater

Tired of running out of hot water during showers or while doing laundry? The Rinnai RX199iN Condensing Smart Sense Tankless Water Heater solves this issue with its impressive capacity of up to 11.1 GPM, allowing multiple fixtures to run simultaneously without a hitch.

Why It Works

• Compact size means it can fit in tight spaces, making it ideal for homes with limited room.
• Smart Sense gas control system ensures optimal efficiency, reducing energy costs while providing ample hot water.
• Quick Flush feature simplifies maintenance, ensuring your unit runs efficiently for years.

Trade-offs

• Professional installation recommended, which can add to initial costs, but guarantees proper setup and longevity.
• Premium price compared to traditional water heaters, but the long-term savings on energy bills and the convenience of endless hot water make it worthwhile.

Overall, the Rinnai RX199iN is worth it for frequent users of hot water. Its innovative design and high efficiency make it a smart investment for any household looking to upgrade their water heating system.

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Rheem High Efficiency Outdoor Tankless Water Heater

Tired of running out of hot water during your showers? The Rheem RTG-70XLN-3 High Efficiency Non-Condensing Outdoor Tankless Natural Gas Water Heater fixes it with its impressive 7.0 GPM flow rate, ensuring you have continuous hot water for multiple applications simultaneously.

Why It Works

• Continuous hot water eliminates the frustration of cold showers, even when using appliances like dishwashers and washing machines.
• Energy efficiency means the heater only operates when hot water is needed, saving you money on energy bills.
• Water-saving setting can save up to 1,100 gallons of water per year, making it a great choice for eco-conscious households.
• Hot-start programming keeps the system ready, preventing cold water bursts and ensuring a comfortable experience.
• Compact size allows for easier installation and saves valuable space in your home.

Trade-offs

• Initial investment may be higher than traditional water heaters, but the long-term savings on energy and water bills can offset this cost.

Overall, the Rheem RTG-70XLN-3 is worth it for frequent users who value comfort, efficiency, and sustainability in their hot water solutions. Its features address common hot water issues effectively, making it a reliable choice for any household.

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Propane Tankless Outdoor Water Heater 5.26GPM

Tired of running out of hot water during your shower? The Propane Tankless Water Heater Outdoor solves this issue with its impressive 5.26 GPM output, ensuring you have hot water on demand for multiple fixtures simultaneously.

Why It Works

• Steady temperature control maintains consistent hot water, eliminating the frustration of sudden temperature changes.
• Multiple safety protections, including a flame failure device and anti-freeze protection, provide peace of mind during use.
• Compact design allows for easy outdoor installation, making it a practical choice for limited spaces.

Trade-offs

• Premium price compared to traditional water heaters, but the durability and efficiency justify the investment.
• Requires propane, which may not be as readily available in some areas as electric options.

Overall, the Propane Tankless Water Heater Outdoor is worth it for frequent users who need reliable hot water without the hassle of storage tanks. Its energy-saving features and consistent performance make it a solid choice for households looking to upgrade their hot water system.

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Rheem 18kW Tankless Electric Water Heater

Tired of running out of hot water during your showers? The Rheem 18kW 240V Tankless Electric Water Heater fixes it with its advanced self-modulation feature that adjusts power to meet your hot water demand seamlessly.

Why It Works

• Flow Rate of up to 4.4 GPM ensures you have enough hot water for multiple outlets simultaneously, eliminating the frustration of cold bursts.
• Durable Copper immersion heating elements provide reliable performance and longevity, so you’re not constantly worrying about breakdowns.
• External digital thermostatic control with LED display allows for precise temperature adjustments within +/- 1 degree, giving you complete control over your comfort.
• Simple installation with bottom 3/4 inch NPT water connections makes it easy to set up without needing extensive plumbing modifications.

Trade-offs

• Premium price compared to traditional tank water heaters, but this investment pays off in energy savings and longevity.
• Requires a 240V electrical supply, which may necessitate electrical upgrades in some homes.

Overall, the Rheem 18kW Tankless Water Heater is worth it for frequent users who value consistent hot water and efficiency in their homes. Its features effectively solve common hot water issues, making it a reliable choice for any household.

To buy this product, click here.

Faq about best outdoor tankless water heaters:

1:What is an outdoor tankless water heater?

An outdoor tankless water heater heats water on demand without a storage tank, designed for outdoor installation.

2:What are the benefits of using an outdoor tankless water heater?

Benefits include energy efficiency, endless hot water supply, space-saving design, and lower risk of leaks compared to traditional water heaters.

3:How do outdoor tankless water heaters work?

They use a heat exchanger to warm water instantly as it flows through the unit, activated by water flow.

4:Are outdoor tankless water heaters energy efficient?

Yes, they are more energy-efficient than traditional heaters, reducing energy bills by only heating water when needed.

5:What size outdoor tankless water heater do I need?

Size depends on your household’s hot water demand; consider flow rate and temperature rise for proper sizing.

6:Can outdoor tankless water heaters work in cold climates?

Yes, but they may require insulation or a freeze protection system to prevent damage in freezing temperatures.

7:How long do outdoor tankless water heaters last?

They typically last 15-20 years with proper maintenance, significantly longer than traditional tank heaters.

Conclusion

Both the Rinnai V53DeP and the Rinnai RX199iN exemplify excellence in outdoor tankless water heating solutions. The V53DeP, with its compact design and efficient propane operation, caters to those seeking reliability in moderate demand scenarios, ensuring a steady supply of hot water. Meanwhile, the RX199iN stands out with its advanced technology and higher capacity, making it an ideal choice for larger households or applications requiring robust performance.

Ultimately, the choice between these two models hinges on specific needs and usage patterns. Each product reflects Rinnai’s commitment to innovation and quality, offering consumers exceptional options for enhancing outdoor hot water availability.