ECCOTEMP SMARTHOME Indoor 6.8 GPM Natural Gas Tankless Water Heater Review: Specs, Pros and Cons
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The eccotemp smarthome indoor 6 8 gpm natural gas tankless water heater delivers on-demand hot water for standard homes. It produces 6.8 gallons per minute at 140,000 BTU. The unit operates between 95 and 140 degrees Fahrenheit. This capacity supports up to three simultaneous applications. You get precise temperature control and smart connectivity. The device connects to mobile apps and voice assistants. Its compact design fits indoor spaces efficiently. This model targets single-family homes and small commercial sites. It offers reliable performance for daily hot water needs. You can monitor energy use through digital tools. The system prioritizes efficiency and convenience for modern households.
What stands out
- 6.8 GPM flow rate at 140,000 BTU
- Temperature range from 95 to 140°F
- Smart app control for scheduling and Eco Mode
- Compatible with Amazon Alexa and Google Home
- Compact dimensions of 7.25 x 14 x 23 inches
Who it fits
Good fit for
This heater suits owners of single-family homes, townhomes, or condos who need hot water for up to three bathrooms. It fits users who want smart features like remote temperature adjustment and energy monitoring. The 6.8 GPM capacity handles simultaneous showers and appliance use. You will appreciate the voice control integration with Alexa or Google Home. It is also ideal for light commercial settings or cabins requiring reliable, on-demand hot water without the bulk of a tank.
Who should skip it
You should look elsewhere if you require outdoor installation, as this unit is rated for indoor use only. The 6.8 GPM flow rate may be insufficient for large homes with multiple bathrooms running simultaneously. If you need a temperature range below 95°F, this model does not support it. Users seeking a purely mechanical system without app connectivity will find the smart features unnecessary. Additionally, the 140,000 BTU output may be overkill for very small applications with low hot water demand.
Verdict: The ECCOTEMP SH22i-NG offers strong performance for medium-sized homes with smart connectivity. It balances high flow rates with efficient energy use. This model is a practical choice for users who value digital control and reliable hot water delivery.
Key specs explained for you
Flow Rate: 6.8 GPM
This rating indicates the unit delivers 6.8 gallons of hot water per minute when the temperature rises by 35 degrees. This capacity supports up to three simultaneous applications, such as showers or sinks. You benefit from consistent hot water flow in larger households or homes with multiple bathrooms. Compare this figure with other models to ensure it meets your peak demand needs.
BTU: 140,000 BTU
The 140,000 BTU input rating determines the heating power available to raise water temperature. Higher BTU inputs generally allow for greater flow rates or larger temperature increases. This power level suits standard-sized single-family homes, townhomes, or light commercial use. Check this spec against your local water temperature to verify adequate heating performance for your specific climate conditions.
Fuel Type: Natural Gas
This unit requires a natural gas supply line for operation. You must have existing natural gas infrastructure in your home to use this heater. It is not compatible with propane or electricity without modification. Verify your fuel source availability before purchasing. This spec distinguishes it from electric models or dual-fuel options that offer different installation flexibility.
Temperature Control: 95-140°F
The adjustable range allows you to set water output between 95 and 140 degrees Fahrenheit. This flexibility lets you optimize energy use for different tasks, such as lower temperatures for handwashing or higher settings for dishwashing. The wide range accommodates varying inlet water temperatures. Compare this range with other units to ensure it meets your specific comfort and efficiency requirements.
Design and build details
According to the listing, this unit measures 14 inches wide, 7.25 inches high, and 23 inches long. It weighs 39 pounds. The compact footprint allows for wall mounting in utility rooms or closets. You must ensure your space can accommodate these dimensions before installation. The indoor placement requirement means you cannot install this model outdoors or in damp environments without proper enclosure.
The exterior finish is black. The listing states the materials are selected for superior efficiency and reliability. This construction aims to provide long-term service for standard single-family homes or light commercial use. You benefit from a design that prioritizes durability over aesthetic customization. The compact size simplifies routing gas lines and venting in tight spaces.
Controls are integrated into the front panel. A smart power button manages on/off states, error detection, and network connectivity. You also use the mobile app for remote adjustments. The app displays temperature in Fahrenheit or Celsius and tracks energy usage. This layout keeps physical interfaces minimal, reducing points of failure. You rely on digital inputs for daily operation rather than manual dials. The design supports voice commands via Alexa or Google Home for hands-free control.
Setup and everyday use details
This unit is designed for indoor installation only. You must connect it to a natural gas supply line. The listing does not mention a remote control or external display. Instead, you manage the device through its Smart Power Button or the Eccotemp mobile app. The button handles basic functions like turning the unit on or off, entering sleep mode, and detecting error codes. For detailed control, the app allows you to adjust temperatures, track energy consumption, and set schedules. You can also choose your preferred currency and temperature units within the interface. The system supports voice commands via Amazon Alexa and Google Home. You can use simple phrases to change the water temperature or power the unit down. The temperature range spans from 95 to 140 degrees Fahrenheit. You can lower the setting to activate Eco Mode, which the listing states may reduce energy consumption by up to 25 percent. This is useful if your incoming water is already warm. For maintenance, the unit is compatible with the EZ-Flush Descaling Kit. You should use this kit to remove mineral buildup and keep the heat exchanger clean. Regular flushing helps maintain the 6.8 GPM flow rate over time. The unit is CSA certified for safety. You do not need to monitor the device constantly once it is connected to your Wi-Fi network. The app provides real-time status updates and alerts if any network or product errors occur. This setup ensures you have precise control over your hot water supply without needing to interact with the physical unit frequently.
Before You Buy This Heater
You need to verify your home’s gas line capacity before installation. This unit requires 140,000 BTU input, so your existing piping must support that flow. You must also confirm you have a compatible electrical outlet for the smart features and a path for exhaust venting, since this model is for indoor use only. The listing mentions an EZ-Flush Descaling Kit for maintenance, which you should purchase separately to keep efficiency high. You should also check if your mobile device supports the required app for remote control and scheduling. This heater fits well if you need hot water for up to three bathrooms simultaneously. It suits standard single-family homes, townhomes, or light commercial spaces. Compare its 6.8 GPM output against other options to ensure it meets your peak demand needs without sacrificing water pressure or temperature consistency during concurrent use.
Check before you buy
- Confirm your gas line supports 140,000 BTU input.
- Verify indoor venting requirements are met for safe operation.
- Check if your smartphone supports the manufacturer's app.
- Ensure you have space for the 23-inch length.
- Purchase the EZ-Flush Descaling Kit for annual maintenance.
The product at a glance
Eccotemp 6.8 GPM Indoor Natural Gas Water Heater
Best for: homes with three or more bathrooms
- Fuel Type
- Natural Gas
- Flow Rate
- 6.8 GPM
- BTU
- 140,000 BTU
- Installation Location
- Indoor
- Temperature Control
- 95-140°F
- Certification
- CSA
View on Amazon: Eccotemp 6.8 GPM Indoor Natural Gas Water Heater Affiliate link
This indoor natural gas unit delivers 6.8 GPM at 140,000 BTU. It supports simultaneous use in up to three bathrooms. You can adjust temperatures from 95 to 140°F via a mobile app. The system connects to Alexa and Google Home. It fits standard single-family homes or light commercial spaces. The black finish measures 7.25 by 14 by 23 inches.
Pros
- 6.8 GPM flow rate at 140,000 BTU
- Smart app control for scheduling and energy tracking
- Voice control via Amazon Alexa and Google Home
- Indoor installation with CSA certification
Cons
- Indoor installation only
- Requires natural gas connection
- No remote control included
Good fit if
- You need hot water for up to three bathrooms
- You want to monitor energy usage via an app
- You prefer voice control with smart home devices
Skip if
- You require outdoor installation
- You use propane instead of natural gas
- You need more than 6.8 GPM capacity
Verdict: ECCOTEMP SMARTHOME 6.8 GPM Natural Gas suits homes needing high flow rates and smart monitoring. It fits buyers who want app-based temperature control and voice assistant integration for their natural gas heating system.
Specifications side by side
| Spec | Eccotemp 6.8 GPM Indoor Natural Gas Water Heater |
|---|---|
| Fuel Type | Natural Gas |
| Flow Rate | 6.8 GPM |
| BTU | 140,000 BTU |
| Installation Location | Indoor |
| Temperature Control | 95-140°F |
| Certification | CSA |
| Dimensions | 7.25 x 14 x 23 inches |
| Weight | 39 pounds |
| Color | Black |
| Model | SH22i-NG |
Frequently asked questions
Can I install the ECCOTEMP SH22i-NG in my garage?
No, this unit is designed for indoor installation only. You must place it in a climate-controlled environment to prevent freezing or damage. The listing specifies indoor use, so outdoor or unheated garages are not suitable locations for this natural gas heater.
What is the physical size of this water heater?
The unit measures 23 inches in length, 14 inches in width, and 7.25 inches in height. It weighs 39 pounds. These dimensions allow for wall mounting in utility rooms or closets, provided you have enough clearance for ventilation and service access.
Does this model work with voice assistants?
Yes, the ECCOTEMP SMARTHOME model supports voice assistant integration. You can control the unit and monitor temperature settings through compatible smart home platforms. This feature allows you to adjust your hot water system hands-free using standard voice commands.
How many bathrooms can this heater support?
This heater is best for homes with three or more bathrooms. It delivers 6.8 gallons per minute, which supports up to three simultaneous applications. This flow rate is sufficient for multiple showers or sinks running at the same time in larger households.
Is a remote control included with this unit?
The listing does not mention a remote control or external display. You manage the device through its Smart Power Button or via the companion app. This design keeps the unit itself simple while allowing you to control settings from your smartphone.
What color is the ECCOTEMP SH22i-NG?
The unit comes in black. This color choice helps it blend into utility spaces or closets without drawing attention. The finish is standard for this model, providing a sleek look that matches modern home appliances and fixtures.