Exterior Tankless Hot Water Heater – What You Didn’t Know About the Top Picks

Transform your hot water experience with an exterior tankless hot water heater, delivering endless hot water on demand!

An exterior tankless hot water heater is an ideal solution for homeowners seeking efficiency and convenience. The Rinnai RX199iN stands out with its impressive 11.1 GPM flow rate and smart technology, ensuring you never run out of hot water. This versatile unit can operate on natural gas or propane, making it suitable for various setups.

Perfect for both indoor and outdoor installations, the Propane Tankless Water Heater Outdoor offers a compact design with a digital display for easy monitoring. With features like multi-protection and instant heating, it caters to diverse needs while maximizing energy savings.

In this review, we will explore the benefits of these tankless systems, highlighting their efficiency, performance, and unique features. Get ready to learn about how these units can enhance your home’s hot water supply!

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exterior tankless hot water heater

Rinnai RX199iN Tankless Water Heater

#1 CHOICE

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 RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater is designed to provide an endless supply of hot water, making it ideal for homeowners looking for efficiency and convenience. This compact unit is suitable for both indoor and outdoor installations, catering to various household needs. With dimensions similar to a small suitcase, it delivers an impressive flow rate of up to 11.1 gallons per minute (GPM), ensuring that multiple fixtures can be used simultaneously without running out of hot water.

The key specifications of the Rinnai RX199iN include a powerful output of 199,000 BTUs and a high energy efficiency factor of UEF .98. It operates on either natural gas or propane, giving users flexibility depending on their energy source. The modern design features an easy-to-use interface and a Quick Flush feature for simplified maintenance, enhancing the overall user experience.

This tankless water heater effectively solves the problem of inconsistent hot water supply, especially in larger households. Its ability to support multiple fixtures at once makes it a great choice for families or homes with high hot water demand.

Pros

  • Endless hot water supply, ideal for large households.
  • Compact size allows for versatile installation options.
  • High energy efficiency reduces utility bills.
  • Easy maintenance with Quick Flush feature.
  • Smart Sense gas control system optimizes performance.

Cons

  • Professional installation is recommended, which can add to the overall cost.
  • WiFi control module sold separately.
  • Initial price may be higher than traditional water heaters.

The Rinnai RX199iN stands out due to its smart, efficient design and high performance. It is best suited for families or individuals who prioritize hot water availability and energy efficiency. While the requirement for professional installation and the additional cost for WiFi control may be minor drawbacks, the overall benefits far outweigh these concerns. This tankless water heater offers exceptional value for those seeking a reliable and modern solution for their hot water needs.

To buy this product, click here.

Propane Tankless Water Heater Outdoor 5.26GPM

#2 CHOICE

Propane Tankless Water Heater Outdoor,5.26GPM 20L Outdoor,Instant Hot Propane Gas Water Heater with Fahrenheit Digital Display,Multi-Protection

The Propane Tankless Water Heater Outdoor is designed to provide instant hot water, making it ideal for homeowners seeking efficient water heating solutions. This unit caters to various users, particularly those with outdoor setups, such as cabins, RVs, or homes without traditional water heating systems. With dimensions of 22.8″ x 14.4″ x 5.9″, it features a sleek stainless steel body and an oxygen-free copper water tank, ensuring durability and resistance against corrosion.

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This tankless water heater solves the problem of running out of hot water by delivering up to 5.26 gallons per minute (GPM) and a maximum temperature rise of 149°F. It operates effectively even at low water pressures, making it a reliable choice for various applications, including multiple fixtures simultaneously.

Pros

  • Steady temperature control with fluctuations within ±1℉ for consistent hot water.
  • Durable stainless steel and copper construction for long-lasting use.
  • Energy-efficient design with advanced combustion technology, reducing gas consumption.
  • Quick outdoor installation with a compact design and remote control panel for convenience.
  • Multiple safety features, including flame failure, anti-freeze, and overheating protection.

Cons

  • Requires a propane connection, which may not be available in all areas.
  • Initial investment can be higher compared to traditional water heaters.
  • Performance may be limited in extremely low water pressure situations.

In terms of performance, the Propane Tankless Water Heater Outdoor stands out with its impressive output of 120,000 BTU per hour, making it suitable for whole-house use. The LED smart digital display allows for easy temperature adjustments, enhancing user experience. This unit is best suited for families or individuals who require a reliable source of hot water for multiple fixtures, especially in outdoor settings.

Overall, this tankless water heater offers excellent value for those in need of a durable, efficient, and user-friendly hot water solution. Its combination of advanced technology and safety features makes it a top choice for outdoor applications.

To buy this product, click here.

ORBEK 14kW Electric Tankless Water Heater

#3 CHOICE

14kW Tankless Water Heater Electric, ORBEK 240 Volt On Demand Instant Hot Water Heater, with LED Digital Display, ETL Certified, Up to 3.38 GPM for 2-3 Point of Use

ORBEK 14kW Tankless Water Heater Electric is designed to provide an instant supply of hot water, ideal for homeowners seeking efficiency and convenience. This unit is perfect for small to medium-sized households that need hot water for 2-3 points of use simultaneously. With its compact dimensions of 14.2″H x 9.5″L x 3.1″W, it fits seamlessly into tight spaces, making it an excellent choice for apartments and smaller homes. The heater features a sleek design and is available in a neutral color that complements various home decors.

The ORBEK tankless water heater addresses the common problem of running out of hot water, ensuring a steady supply at a rate of up to 3.38 gallons per minute. Its high energy efficiency is a standout feature, utilizing water-electricity separation to significantly reduce scale and corrosion, potentially lowering electricity costs by up to 60% compared to traditional tank-style heaters.

Pros

  • Instant Hot Water Supply: Provides endless hot water for multiple uses at once.
  • High Energy Efficiency: Reduces electricity costs significantly.
  • Comprehensive Security Protection: ETL certified with multiple safety features.
  • Stable Temperature Control: Maintains a consistent water temperature within 1°F.
  • Easy Installation: Compact design allows for straightforward setup in various spaces.

Cons

  • Requires Specific Electrical Setup: Needs a 240V/60AMP two-pole breaker and 6 AWG wires.
  • Initial Cost: Higher upfront investment compared to traditional heaters.
  • Limited to 2-3 Points of Use: May not suffice for larger households with higher demands.

The ORBEK 14kW Tankless Water Heater excels in performance, offering a reliable and efficient solution for consistent hot water access. Its standout features, including the LED digital display for easy temperature adjustments and comprehensive safety mechanisms, enhance usability. This unit is best suited for small families or individuals who prioritize energy savings and convenience in their daily routines. While the installation requirements may pose a challenge for some, the long-term benefits make it a worthy investment.

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In summary, the ORBEK 14kW Tankless Water Heater Electric is an excellent choice for those seeking a reliable, energy-efficient hot water solution that fits comfortably in limited spaces. Its features cater to the modern homeowner’s needs, ensuring a comfortable and hassle-free experience.

To buy this product, click here.

Camplux Portable Propane Water Heater 2.64GPM

#4 CHOICE

Tankless Water Heater Propane,2.64GPM 10L Outdoor Portable Water Heater,with 2 GPM Water Pump, Instant Propane Water Heaters with Digital Display Multi-Protection for Camping Trips Boat Cabins

Tankless Water Heater Propane is designed to provide instant hot water, making it ideal for outdoor enthusiasts, campers, and pet owners. With dimensions of 20.47×5.51×12.6 inches, this portable water heater is compact and lightweight, ensuring easy transport. It operates on propane (LPG) and features a maximum flow rate of 2.64 gallons per minute, delivering hot water quickly and efficiently. The unit includes a CSA-approved regulator and multiple safety features, such as flame failure devices and anti-freeze protection, enhancing user safety during outdoor activities.

This tankless water heater effectively solves the problem of accessing hot water in remote locations, allowing users to enjoy comfortable showers after a long day of hiking or camping. Its design is particularly beneficial for those with pets, as it comes with a specialized pet showerhead, making bathing pets outdoors a breeze.

Pros

  • Instant hot water delivery with a maximum temperature rise of 167°F.
  • Compact and lightweight design for easy portability.
  • Includes a variety of accessories, including a high-pressure showerhead and pet showerhead.
  • Energy-efficient operation, saving gas while providing ample hot water.
  • Multiple safety features ensure safe usage in outdoor environments.

Cons

  • Requires propane, which may not be readily available in all locations.
  • Some users may find the price higher compared to traditional water heaters.
  • Limited to outdoor use; not suitable for indoor applications.

The Tankless Water Heater Propane excels in performance with its advanced combustion technology, which reduces gas consumption and noise. Its user-friendly design, including the dual power options for the water pump, enhances usability in various settings, whether near a vehicle or in a more remote area. This product is best suited for campers, beachgoers, and pet owners looking for an efficient and portable solution for hot water needs.

In summary, this tankless water heater is a valuable investment for anyone who enjoys outdoor activities and desires the comfort of a hot shower. Its combination of portability, efficiency, and safety features makes it an excellent choice for adventurers and pet lovers alike.

To buy this product, click here.

Ecosmart Electric Tankless Water Heater 3500W

#5 CHOICE

Tankless Water Heater Electric ,110v 0-3500W Whole House Tankless Hot Water Heater with Led Temperature Display for Indoor or Outdoor Black-5 Years Quality Assurance

Tankless Water Heater Electric is designed to provide instant hot water for various settings, making it ideal for homeowners and small businesses. Its compact size and sleek black design fit seamlessly into any indoor or outdoor space. With dimensions that allow for flexible installation, this unit is made from durable 304 stainless steel and features an all-aluminum die-cast heating body, ensuring longevity and efficiency.

This tankless water heater solves the common problem of waiting for hot water, offering a quick solution for kitchens, bathrooms, and even outdoor activities like camping. Its advanced intelligent temperature control technology allows users to enjoy hot water immediately, enhancing the overall experience while minimizing energy waste.

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Pros

  • Instant hot water eliminates waiting time.
  • Energy-efficient design reduces utility bills.
  • Durable materials ensure long-term usage.
  • Flexible installation options for various spaces.
  • 24-hour customer service for support and maintenance.

Cons

  • Not suitable for showers without pre-heating water.
  • Lower power output limits usage to sinks.
  • May require professional installation for optimal performance.

Performance-wise, the Tankless Water Heater Electric excels in providing hot water quickly and efficiently. Its standout features include a built-in anti-leakage protection device and a multi-angle installation option, making it user-friendly and safe. While it is best suited for sinks in kitchens and bathrooms, its limitations in power output restrict its use for showers unless specific conditions are met.

This product is perfect for families looking for a reliable hot water solution or small businesses needing consistent hot water access. Despite its minor drawbacks, the Tankless Water Heater Electric offers great value, ensuring that users can enjoy a worry-free hot water experience.

To buy this product, click here.

Faq about Exterior Tankless Hot Water Heater:

1:What is an exterior tankless hot water heater?

An exterior tankless hot water heater is a system that heats water on demand outside your home, eliminating the need for a traditional storage tank.

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

Benefits include energy efficiency, space savings, and a continuous supply of hot water, reducing the risk of running out during peak usage.

3:How does an exterior tankless hot water heater work?

It heats water directly as it flows through the unit, using gas or electricity, providing instant hot water without pre-heating.

4:Are exterior tankless hot water heaters energy-efficient?

Yes, they are highly energy-efficient, using less energy than traditional systems by heating water only when needed.

5:What maintenance is required for an exterior tankless hot water heater?

Regular descaling, checking filters, and ensuring proper ventilation are essential for optimal performance and longevity.

6:Can exterior tankless hot water heaters freeze?

Yes, they can freeze in extreme cold. Insulating the unit or using a freeze protection system is advisable.

7:What size exterior tankless hot water heater do I need?

Size depends on your household’s hot water demand. Consult a professional to determine the right capacity for your needs.

Conclusion

Rinnai RX199iN exemplifies innovation in water heating, offering unparalleled efficiency with its impressive 5.26 GPM flow rate, ideal for residential needs. Its propane-fueled design ensures a reliable and sustainable solution, catering to eco-conscious consumers.

Conversely, the Propane Tankless Water Heater Outdoor stands out for its robust performance and user-friendly installation. This model not only guarantees continuous hot water supply but also enhances energy conservation, making it a prudent choice for homeowners seeking both functionality and environmental responsibility.