AO SMITH ATI-140H-100 Gpm Volt Natural Gas ATI-140H-N 6.6 120 000-BTU

( Brand: Ao Smith ), ( Manufacturer Part Number: ATI-140H-100 ), ( Type: Tankless Water Heater/boiler ), ( Power Source: Ng ), ( Heating System: Instantaneous ), ( Color: Beige ), ( Voltage: 120 V ), ( Btu/h Heating Rating: 120000 ), ( Mounting Location: Indoor, Wall ), ( Item Width: 14 In )

Review AO SMITH 6.6 Gpm 120 Btu Volt Residential Natural Gas

The AO Smith ATI-140H-100 and ATI-140H-N are high-performance natural gas tankless water heaters designed to provide an endless supply of hot water for homes and businesses. These models have a water flow rate of 6.6 gallons per minute (GPM), making them suitable for larger households or commercial applications with high hot water demand.

The ATI-140H-100 and ATI-140H-N are compact in size, measuring 20.3 inches high by 13.5 inches wide by 8 inches deep, allowing for easy installation in various locations. They are also equipped with a digital control interface, which enables users to adjust the temperature and diagnose any potential issues with ease.

Both models feature a condensing design, which extracts more heat from the natural gas fuel source, resulting in higher energy efficiency and lower operating costs. The heat exchanger is made of stainless steel, which is highly resistant to corrosion and provides excellent durability.

The ATI-140H-100 and ATI-140H-N are also equipped with a recirculation system, which allows users to recirculate the water in their plumbing system, reducing the wait time for hot water at the faucet. This feature is particularly useful in larger homes or commercial buildings with extensive plumbing.

These tankless water heaters are designed to operate on 120 volts, making them compatible with standard household electrical systems. However, they also have the capability to be upgraded to 240 volts for increased water heating capacity.

The AO Smith ATI-140H-100 and ATI-140H-N also come with a number of safety features, including a flame rod safety device, overheat protection, and a built-in freeze protection system. These features ensure that the water heater operates safely and efficiently in various conditions.

In summary, the AO Smith ATI-140H-100 and ATI-140H-N are high-performance natural gas tankless water heaters with a water flow rate of 6.6 GPM, compact size, digital control interface, condensing design, recirculation system, and various safety features. They are suitable for larger households or commercial applications with high hot water demand and can be installed in various locations with standard electrical systems.

AO Smith ATI-140H-100 and ATI-140H-N Natural Gas Tankless Water Heaters: A Comprehensive Analysis

The AO Smith ATI-140H-100 and ATI-140H-N are natural gas tankless water heaters with a 6.6 GPM (Gallons Per Minute) flow rate. They are compact, efficient, and designed for residential use.

- Condensing technology: These water heaters effectively capture and utilize the heat from the exhaust gases, making them more energy-efficient than non-condensing models.

- Energy Star certified: They meet or exceed the energy efficiency requirements set by the U.S. Environmental Protection Agency and the U.S. Department of Energy.

- Low standby loss: Since there is no stored water, these tankless models have minimal standby loss, which results in energy savings.

- Continuous hot water supply: With an endless supply of hot water, these tankless water heaters eliminate the need for a storage tank.

- High flow rate: The 6.6 GPM flow rate ensures an adequate supply of hot water for multiple uses simultaneously.

- Space-saving design: Their compact size allows for easy installation in various locations, like closets, garages, or utility rooms.

- Flexible venting options: The power direct venting system allows for installation in areas with limited venting options, such as apartments or mobile homes.

- Stainless steel construction: Both the heat exchanger and the burner are made of stainless steel, ensuring durability and resistance to corrosion.

- Long warranty: AO Smith offers a 15-year warranty on the heat exchanger and a 5-year warranty on parts.

- Automatic safety shut-off: The water temperature is automatically adjusted to prevent scalding, ensuring safety.

- Overheat protection: The system shuts off if the water temperature exceeds a set limit.

- Higher upfront cost: Tankless water heaters have a higher initial investment compared to traditional storage tank models.

- Potential for higher energy costs: Although energy-efficient, the energy consumption can be higher if multiple appliances are used simultaneously.

The AO Smith ATI-140H-100 and ATI-140H-N natural gas tankless water heaters are efficient, energy-saving, and durable appliances that offer an endless supply of hot water. Their high flow rate, space-saving design, and flexible venting options make them an attractive choice for homeowners. However, their higher upfront cost and potential for higher energy consumption should be considered.

These tankless water heaters are an excellent choice for homeowners who value energy efficiency, space savings, and a continuous supply of hot water. They are suitable for households with multiple bathrooms or high hot water demand. If the higher upfront cost is a concern, homeowners may want to consider other tankless models with lower flow rates or traditional storage tank water heaters.

Details:

Includes integrated temperature controls and advanced diagnostics to simplify troubleshooting. Vents with 3 PVC up to 70 feet or 4 100. Safety features include exhaust water. Continuous flow rate up to 6.6 GPM.

Highly efficient condensing Ultra-Low Nix tankless water heater delivers up to .91 Uniform Energy Factor UEF. Secondary heat exchange is made of 316L Stainless Steel to protect against corrosion.

part #: ati140h100 prices

• $600.00-$1726.47

specifications wateheat:

• brand: Ao Smith
• mpn: Ati-140h-100
• type: Tankless Water Heater/boiler
• power source: Ng
• heating system: Instantaneous
• color: Beige
• voltage: 120 V
• btu/h heating rating: 120000
• mounting location: Indoor, Wall
• item width: 14 In

payments wateheat:

• wallet: Paypal
• credit card: Discover
• other

returns wateheat:

• paid by: Buyer
• policy: Returns Accepted
• method: Money back
• time: 30 Days

general wateheat:

• Heating, Cooling Air > Water Heaters > Tankless Water Heaters
• condition: New

offer wateheat:

• availability: In Stock
• started: October 30, 2025
• quantity: 8
• options: Ship-to-home
• sold: 0

seller wateheat:

• city: Houston, Texas
• # reviews: 5233
• rating: 98.4%

shipping wateheat:

• service: Standard
• transit: 4-9 Days
• class: Standard
• cost: $0.00
• type: Fixed

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