Water Heater

Best Eccotemp Gas Tankless Water Heaters

Finding the right tankless water heater can feel overwhelming. With so many brands and models available, it’s easy to get lost in the technical jargon and inflated claims. You want a reliable unit that provides endless hot water without breaking the bank, but how can you be sure which one is best for your needs?

An excellent gas tankless water heater should offer on-demand hot water, energy efficiency, and durability. It should cater to your household’s specific hot water needs, whether for a single shower, multiple bathrooms, or even light commercial use. The ideal model should also come with features that enhance user experience, such as mobile app control and smart home compatibility.

In this review, we’ve identified five standout Eccotemp gas tankless water heaters that excel in performance and value. Each option suits different circumstances and preferences, ensuring there’s a perfect match for everyone.

Here’s a quick comparison of the key specifications for these models:

Features Eccotemp SMARTHOME Outdoor Eccotemp 45H-NG Eccotemp SMARTHOME Indoor Eccotemp SMARTHOME Indoor Eccotemp CEL5 Portable
Water Flow Rate 6.8 GPM 6.8 GPM 6.8 GPM 6.8 GPM 5 LPM
Power Source Liquid Propane Natural Gas Natural Gas Liquid Propane Propane
Temperature Range 95-140°F 95-140°F 95-140°F 95-140°F 10-60°C
Smart Features Yes No Yes Yes No
Best Use Case Outdoor Showers Whole Home Indoor Use Indoor Use Portable Outdoor
eccotemp gas tankless water heater
Eccotemp CEL5 1.5 GPM Portable Tankless Water HeaterWatch on YouTube

Eccotemp SMARTHOME Outdoo…

1st Pick

ECCOTEMP

Eccotemp SMARTHOME Outdoor 6.8 GPM Liquid Propane Tankless Water Heater

  • With a temperature range of 95-140 degrees Fahrenheit and rated for 3-4 applications, this heater provides on-demand hot showers f…
  • Rated at 6.8 GPM (gallons per minute) at 140,000 BTU with a temperature rise of 35 degrees, this ultra-efficient tankless hot wate…
  • Enjoy real-time control over your home's water heating needs. Use the Eccotemp mobile app to track energy consumption, adjust temp…

The Eccotemp SMARTHOME Outdoor 6.8 GPM Liquid Propane Tankless Water Heater is designed for those who need affordable and efficient hot water solutions outdoors. This model excels in providing on-demand hot showers for multiple bathrooms simultaneously, making it ideal for families or those with several outdoor fixtures.

What stands out about this unit is its remarkable control features. With the Eccotemp mobile app, users can track energy consumption, adjust temperatures, and set schedules right from their smartphones. This capability not only makes management easier but also helps in reducing energy costs through its Eco Mode.

However, this model may not be suitable for those without access to liquid propane. Additionally, some users might find the initial setup a bit challenging without prior experience in gas appliances.

  • Water Flow Rate: 6.8 GPM
  • Power Source: Liquid Propane
  • Temperature Range: 95-140°F
  • Smart Features: Mobile app control
  • Best for: Outdoor showers and installations

Eccotemp 45H-NG 6.8 GPM O…

2nd Pick

ECCOTEMP

Eccotemp 45H-NG 6.8 GPM Outdoor Natural Gas Tankless Water Heater

  • Whole home outdoor, Natural Gas powered tankless water heater, rated at 6.8 GPM that activates only when in use, making it an ener…
  • The Eccotemp 45H/HI series is CSA Certified for US and Canadian use guaranteeing a safe, easy, and enjoyable installation experien…
  • No venting required for this model, making the installation process quick, easy and hassle free

The Eccotemp 45H-NG 6.8 GPM Outdoor Natural Gas Tankless Water Heater is a strong contender for homeowners seeking a reliable, energy-efficient solution. This model provides a consistent hot water supply for whole-home use, making it perfect for smaller homes or apartments.

This unit shines in its simple installation process. With no venting required, it saves space and minimizes the hassle of setup. It’s also CSA Certified, ensuring safety and compliance with U.S. and Canadian standards.

That said, the lack of smart features could be a drawback for tech-savvy users who prefer modern conveniences. Additionally, its performance may vary based on water temperature and flow rate.

  • Water Flow Rate: 6.8 GPM
  • Power Source: Natural Gas
  • Temperature Range: 95-140°F
  • Smart Features: None
  • Best for: Whole home installations

Eccotemp SMARTHOME Indoor…

3rd Pick

ECCOTEMP

Eccotemp SMARTHOME Indoor 6.8 GPM Natural Gas Tankless Water Heater

  • With a temperature range of 95-140 degrees Fahrenheit and rated for 3-4 applications, this heater provides on-demand hot showers f…
  • Rated at 6.8 GPM (gallons per minute) at 140,000 BTU with a temperature rise of 35 degrees, this ultra-efficient tankless hot wate…
  • Enjoy real-time control over your home's water heating needs. Use the Eccotemp mobile app to track energy consumption, adjust temp…

The Eccotemp SMARTHOME Indoor 6.8 GPM Natural Gas Tankless Water Heater is tailored for indoor installations, offering the same versatility and efficiency expected from Eccotemp products. This model is perfect for homes with limited outdoor space and provides sufficient hot water for several fixtures at once.

Its standout feature is the ability to control the heater remotely through a mobile app, allowing for temperature adjustments and energy tracking. This can lead to significant savings on gas bills, particularly in households with fluctuating hot water needs.

On the downside, installation may require additional venting, which can complicate the setup process. Some users also report a learning curve when navigating the app’s functionalities.

  • Water Flow Rate: 6.8 GPM
  • Power Source: Natural Gas
  • Temperature Range: 95-140°F
  • Smart Features: Mobile app control
  • Best for: Indoor residential use

Eccotemp SMARTHOME Indoor…

4th Pick

ECCOTEMP

Eccotemp SMARTHOME Indoor 6.8 GPM Liquid Propane Tankless Water Heater

  • With a temperature range of 95-140 degrees Fahrenheit and rated for 3-4 applications, this heater provides on-demand hot showers f…
  • Rated at 6.8 GPM (gallons per minute) at 140,000 BTU with a temperature rise of 35 degrees, this ultra-efficient tankless hot wate…
  • Enjoy real-time control over your home's water heating needs. Use the Eccotemp mobile app to track energy consumption, adjust temp…

For those needing a liquid propane option, the Eccotemp SMARTHOME Indoor 6.8 GPM Liquid Propane Tankless Water Heater is an excellent choice. It caters to households looking for an efficient indoor heating solution without sacrificing performance.

This model mirrors the performance of its natural gas counterpart, providing consistent hot water and the added benefit of mobile app control. The flexibility of being able to monitor and manage the heater from a smartphone is a feature many users appreciate.

However, similar to the natural gas version, installation can be complex, especially for those unfamiliar with gas appliances. Users should also be aware of proper ventilation requirements to ensure safety.

  • Water Flow Rate: 6.8 GPM
  • Power Source: Liquid Propane
  • Temperature Range: 95-140°F
  • Smart Features: Mobile app control
  • Best for: Indoor liquid propane use

Eccotemp CEL5 5 LPM Porta…

5th Pick

ECCOTEMP

Eccotemp CEL5 5 LPM Portable Outdoor Instantaneous Water Heater, 37 mbar

  • Lightweight, easy-to-carry, and compact, this water heater can be used for hot outdoor showers, campervan conversions, setting up…
  • Delivers 5 LPM (liters per minute) of hot water almost anywhere outdoors. Perfect for one hot water application (one shower).
  • High-powered 37,500 BTUs with a temperature range of 10 to 60 degrees Celsius.

The Eccotemp CEL5 5 LPM Portable Outdoor Instantaneous Water Heater is perfect for those who need hot water on-the-go. Whether camping, at a construction site, or setting up an outdoor kitchen, this lightweight heater can deliver hot water without the need for electricity.

What makes this model stand out is its portability. Weighing less and featuring easy connections to standard propane cylinders, it’s designed for convenience. The 37,500 BTU output ensures hot water is readily available for various outdoor applications.

However, due to its lower flow rate of 5 LPM, it’s best suited for single applications, making it less ideal for larger groups or households. Users may need to wait for the water to heat up if multiple uses are required in quick succession.

  • Water Flow Rate: 5 LPM
  • Power Source: Propane
  • Temperature Range: 10-60°C
  • Smart Features: None
  • Best for: Portable outdoor use

How We Chose These Products

In selecting these Eccotemp gas tankless water heaters, we focused on various factors: energy efficiency, user-friendly features, and suitability for different settings. We wanted to ensure that each pick met the needs of various buyers, from families needing multiple hot water sources to individuals seeking portable solutions.

We also considered user feedback and real-world performance. Each model has been well-reviewed for its reliability and efficiency, providing users with the hot water they need without excessive energy costs. Our aim was to present options that cater to both indoor and outdoor requirements.

Buying Guide: What Really Matters

When selecting a gas tankless water heater, consider your specific hot water needs. Assess the number of outlets that will be used simultaneously and the required flow rate. For larger households, units with higher GPM ratings will be essential.

Additionally, installation requirements can vary widely between models. Some units may require venting, while others do not. It’s also crucial to evaluate the energy source available in your home, whether natural gas or propane, to ensure compatibility.

Our Top Recommendation

For a balance of performance, efficiency, and modern features, the Eccotemp SMARTHOME Outdoor 6.8 GPM Liquid Propane Tankless Water Heater is our top recommendation. It’s perfect for families needing reliable hot water in outdoor settings. If you prefer a natural gas option, the Eccotemp 45H-NG is an excellent runner-up, providing whole-home heating without the complexities of venting.

Frequently Asked Questions

1. How do I determine the right flow rate for my needs?
Consider the number of simultaneous hot water uses in your home. Calculate the total GPM needed based on showers, sinks, and appliances.

2. Can I install a tankless heater myself?
While some users manage DIY installations, hiring a professional is recommended for safety and compliance with local codes.

3. What maintenance is required for tankless water heaters?
Regular descaling and occasional filter cleaning are necessary to maintain performance and efficiency.

4. Are these heaters energy-efficient?
Yes, tankless water heaters typically use less energy than traditional systems, as they only heat water on demand.

Affiliate Disclosure: We may earn a commission when you buy through links on this site, at no extra cost to you. This helps us keep testing products independently.

HomeBestGoods Team

Written by HomeBestGoods Team

Part of the HomeBestGoods team — testing saunas, hot tubs and heaters and writing the guides we wished existed before we bought.

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