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Eccotemp Smart Home SHLX-LP Indoor 4.5 GPM Natural Gas Tankless Water Heater


Heating water smarter with the Eccotemp Smart Home Indoor 4.5 GPM Natural Gas Tankless Water Heater! With our commitment to advanced technology, this sleek and modern water heater brings cutting-edge solutions to your living space, guaranteeing a continuous hot water supply while conserving both space and energy.

Say goodbye to the inconvenience of running out of hot water mid-shower or during other daily tasks. With a flow rate of 4.5 gallons per minute (GPM), Eccotemp’s SHLX Series can easily meet the hot water demands of a small to medium-sized household, providing a continuous supply of hot water whenever you need it. Enjoy long, luxurious showers, efficient dishwashing, and other hot water needs without interruption.

This Smart Home Indoor Natural Gas Tankless Water Heater is packed with smart features that make your life easier. Imagine living in a home that understands you, controlling your water heater with only your voice. With its Wi-Fi compatibility, this appliance can connect with Amazon Alexa and Google Home for easy voice commands. Wake up to a steaming shower by commanding, "Alexa, set my water heater to 110 degrees." Your warm bath awaits when you arrive home – just tell it, "Ok Google, turn my water heater on."

Use the Eccotemp app to control and monitor your water heater from anywhere. Adjust the temperature, set schedules and timers, see real consumption statistics with an associated dollar amount, and receive maintenance alerts, all at your fingertips. This allows you to customize your hot water usage to match your lifestyle, while also optimizing energy usage and reducing utility bills. 

With our 3-inch vertical and horizontal vent kits (sold separately), setting up this water heater indoors is effortless. Its sleek, wall-hung layout and elegant tempered glass front not only conserve essential floor room but also elevates the aesthetics of your living space.

This Smart Home Tankless Water Heater is not only convenient, but it's also energy efficient. Its advanced heating technology only heats water as it's needed, eliminating standby heat loss and reducing energy waste. This can lead to significant energy savings compared to traditional tank-based water heaters, helping you reduce your carbon footprint and lower your energy bills.

Invest in a smarter and more efficient way to heat your water with our Smart Home Indoor 4.5 GPM Tankless Water Heater. Enjoy endless hot water, convenient control, and energy-efficient operation in your home. Upgrade to a smart water heating solution today and experience the ultimate comfort and convenience of never running out of hot water again! 

The Eccotemp SHLX Series has been CSA tested and approved for US & Canada at elevations up to 2000 feet. Installation and use above 2000 feet may affect overall product efficiency and performance. Installation and use above 5000 feet is not recommended. 



  • With a temperature range of 95-140 degrees Fahrenheit and rated for 1-2 applications, this water heater provides on-demand hot showers for up to 2 bathrooms simultaneously. 
  • Rated at 4.5 GPM (gallons per minute) at 80,000 BTU with a temperature rise of 35 degrees, this ultra-efficient tankless hot water heater is ideal for smaller single-family homes, townhomes, condos, cabins, apartments, or light commercial use.  
  • Enjoy real-time control over your home's water heating needs. Use the Eccotemp mobile app to track energy consumption, adjust temperatures, set schedules, or even detect product and network errors. Unlock substantial savings with our Eco Mode feature, a smart solution that can help you reduce energy consumption by up to 25%. If your incoming water is set at a higher temperature than needed, simply use your phone to adjust the settings, aiding in lower utility usage, such as gas. 
  • Experience the convenience of our versatile smart app settings that display your desired currency (USD/CAD), dual-mode Fahrenheit and Celsius temperature readings, and preferred gas measurement unit, offering a personalized understanding of your usage. 
  • Seamlessly connect with Amazon Alexa or Google Home for voice command functions like: "Alexa, set my water heater to 110 degrees" or "Hey Google, switch off my water heater." 
  • Smart Power Button feature turns your model on or off, detects error codes, connects to wireless networks, and enables sleep mode to prevent unnecessary energy use - all with a simple touch. 
  • The SHLX Series 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. 
  • Meticulously crafted, this tankless water heater is designed to endure. The chosen materials offer superior functionality and unmatchable reliability, promising years of dependable service. 
  • Easy wall mounting and installation with 110/120-volt UL listed power cord and 1/2 inch NPT water and gas connections. 
  • Indoor venting is available in 3-inch horizontal and vertical installation kits (sold separately). 
  • CSA certified for installation in the US and Canada. 
  • Limited Manufacturer Warranty (Heat Exchanger: 5 Years, Parts: 2 Years), live chat, appointments for product support, and self-help guides provide peace of mind, assuring that the Eccotemp SHLX Series will keep you in hot water for years. 
  • What's Included: Smart Home 4.5 GPM Indoor Natural Gas Tankless Water Heater (SHLX-NG), Wireless Remote, mounting hardware, gas appliance shut off valve, and product manual. 
    • Mid Size Home
    • Town Home
    • Apartment
    • Office
    • Tiny Home
    • Cabins


    • Voice Commands
    • Easy Install
    • SmartHome
    • Glass Panel
    • Smart App
    • Smart Button
    • Energy Efficient
    • Wireless Remote
    • Statistics
    • Compact Size
    • Control Board
    • Eco Mode
    • Scheduler
    • Timer
    • Error Monitoring
    • Easy Installation: Experience a hassle-free set-up process with the Eccotemp Smart Home 4.5 GPM Indoor Gas Tankless Water Heater. When paired with our 3-Inch Stainless Steel Vent kit, both vertical and horizontal installations are straightforward and efficient.Top Image Eccotemp Tankless Water Heater
    • Smart Revolution: First patented all-in-one smart home water heater. The complexities & expenses of integrating traditional heaters become a thing of the past. This system comes built-in, simplifying your home's water heating needs into one streamlined, smart device.Middle Image Eccotemp Tankless Water Heater
    • Innovative Activation: This model is equipped with an advanced Smart Power Button that simplifies operations. With a single touch, it turns your device on & off, detects error codes, connects to wireless networks, & activates sleep mode to prevent unnecessary energy use.Bottom Image Eccotemp Tankless Water Heater

    • Designed with a smarter home in mind
      ”Ok Google, change my water heater to 110 degrees.”Works with Hey Google Logo Tankless Water Heater
    • Connects seamlessly with Google and Alexa
      ”Alexa, change my water heater to Comfort Mode.”Works with Alexa Logo Portable Tankless Water Heater


    • Rated Flow Rate: 4.5GPM
    • Gas: Natural Gas
    • Amps: 0.34 Amps
    • Installation: Indoor
    • Color: Black
    • Model: SHLX-NG
    • BTU: 80,000
    • Power Type: AC
    • Temperature Range: 95°-140°F
    • Water Connection: 1/2" NPT
    • Gas Connection: 1/2" NPT
    • Warranty: 2 Years 
    • Weight: 22.1 lbs
    • Product Dims: 22"x13"x6.5"
    • Packaging Dims: 27.5"x15.5"x8.75"

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