Eccotemp SmartHome Indoor 4.0 GPM Natural Gas Tankless Water Heater, SH12-A Series - 1779610895660_334
Heating water smarter with the Eccotemp Smart Home Indoor 4.0 GPM Natural Gas Tankless Water Heater! Leveraging the latest in technological innovation, this water heater not only ensures an uninterrupted flow of hot water but also optimizes your space and energy usage for a smarter, more efficient home.
Say goodbye to running out of hot water during peak usage times or adjusting water temperature manually. This Smart Home Tankless Water Heater is equipped with Wi-Fi connectivity, allowing you to control and monitor your water heater remotely using your smartphone or pair with Amazon Alexa and Google Home to access voice commands. Set customized schedules, adjust temperature settings, view real consumption statistics, and receive maintenance alerts with ease, giving you full control over your hot water supply from anywhere, anytime.
Featuring a powerful flow rate of 4.0 gallons per minute (GPM), this tankless water heater is perfect for small to medium-sized households, providing a continuous and uninterrupted supply of hot water for all your needs. Enjoy long showers, efficient dishwashing, and other hot water demands without any interruptions, making your daily routines more convenient and enjoyable.
This Tankless Water Heater is not just smart, but also energy efficient. Its advanced heating technology only heats water as it's needed, eliminating the standby heat loss that occurs with traditional tank-based water heaters. This results in significant energy savings, reducing your utility bills and lowering your environmental footprint.
Installation is simple and hassle-free, making it a great option for any home. Its compact and sleek design allows for easy installation in tight spaces, saving valuable floor space in your home.
Upgrade to a smarter and more efficient water heating solution without breaking the bank. This budget-friendly tankless water heater delivers functionality and performance by providing the convenience of smart controls, an endless hot water supply, and energy-efficient operation. Start experiencing the ultimate in comfort and convenience today!
The Eccotemp SH12-A 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.
All purchases valued at $75 or above will be shipped with SIGNATURE REQUIRED. If you wish to remove the SIGNATURE REQUIRED please contact Customer Service. Please Note: By opting out of SIGNATURE REQUIRED, you release Eccotemp from all liability of lost or stolen packages. Call 1-866-356-1992 or chat with us to speak with a customer service agent.
Features
- Temperature range of 95-140 degrees Fahrenheit and rated for 1-2 applications.
- Rated at 4.0 GPM (gallons per minute) at 80,000 BTUs 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.
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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.
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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 SH12-A 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.
- Easy wall mounting and installation with 120-Volt UL listed power cord and ½-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, Components: 2 Years, Parts/Accessories: 30 Days), live chat, and self-help guides provide peace of mind, assuring that the Eccotemp SH12-A Series will keep you in hot water for years.
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What's Included: Smart Home 4.0 GPM Indoor Natural Gas Tankless Water Heater (SH12-A-NG), 1 x Hardware Pack, 1 x Product Manual.
What our Experts Think
Q&A
Q: What is the Eccotemp SH12-A SmartHome indoor unit?
A: It is a compact indoor natural gas tankless water heater from the SH12-A SmartHome series, designed for small homes and apartments, delivering up to 4.0 GPM of continuous hot water with Wi-Fi smart controls.
Q: What does the SmartHome feature do?
A: It allows Wi-Fi app control and voice integration (Alexa/Google Home) so you can adjust temperature, set schedules, monitor usage, and receive alerts remotely.
Q: What is the hot water capacity?
A: It provides up to 4.0 GPM, typically supporting 1–2 bathrooms or light simultaneous usage (shower + sink) depending on incoming water temperature.
Q: What fuel does it use?
A: It runs on natural gas (NG) and is designed for indoor installation with proper venting.
Q: What is the power output (BTU)?
A: It operates at around 80,000 BTU, optimized for smaller residential hot water demand.
Q: Does it require venting?
A: Yes. It requires a 3-inch stainless steel vent system (horizontal or vertical depending on setup) for safe indoor exhaust.
Q: Does it need electricity?
A: Yes. It uses 120V power for ignition, controls, and the internal fan system.
Q: What homes is it best for?
A: It is ideal for small to medium homes, condos, townhouses, cabins, and apartments with moderate hot water demand.
Maintenance Tips
- Flush every 6–12 months to remove scale buildup and maintain heating efficiency
- Clean inlet water filter regularly to prevent low flow and ignition issues
- Inspect natural gas line and regulator for leaks, corrosion, or loose connections before use
- Ensure indoor venting system is properly installed, sealed, and free from blockages for safe exhaust flow
- Descale heat exchanger more frequently in hard-water areas to prevent temperature fluctuations
- Maintain stable water pressure to ensure consistent ignition and performance
- Keep electrical connections dry and ensure stable power supply for control board and fan
- Check temperature sensors and smart display for error codes and address early
- Do not operate without minimum required water flow for safe ignition
- Shut off gas and water supply before performing any maintenance or servicing
- Keep installation area clean, dry, and well-ventilated to avoid overheating or corrosion
- Do not use for hydronic heating, floor heating, or recirculating systems
- Schedule professional servicing annually for safe combustion and long-term reliabilit
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