print this page

Tankless Water Heater Non-Condensing Indoor 240,000 BTU Natural Gas

Tankless Water Heater Non-Condensing Indoor 240,000 BTU Natural Gas

Tankless Water Heater Non-Condensing Indoor 240,000 BTU Natural Gas

Model ATIO-710-N

The 710 Series is a fully modulating, gas-fired, tankless water heaters. It can be installed either outdoors, indoors, or direct vented. Capable of supplying domestic hot water systems and/or combined domestic and heating applications (local codes dictate proper compliance). Multiple units can be combined in a system of water heaters to provide for larger applications such as hotels, large restaurants and apartment complexes..

The ATIO-710-N tankless water heater uses up to 240,000 BTUs of natural gas to deliver a max flow rate of 10 GPM. It utilizes non-condensing technology to achieve 82% thermal efficiency. This model meets Low NOx emission requirements, and comes with a 15-year limited warranty.

Where to Buy

Where to Buy

Woodbridge, NJ 07095

Location #1

Jersey Pipeline Plumbing & Heating Inc.

Freehold, NJ

More Info >>
Location #2

Eric Benko Plumbing and Heating

Aberdeen, NJ

More Info >>
Location #3


Tinton Falls, NJ

More Info >>
View All List My Company Here

Product Features & Options

Dual Heat Exchanger

The primary heat exchanger is constructed of commercial-grade HRS35 copper, which is stronger than standard copper and more resilient against erosion. Condensing models feature 316L stainless steel secondary heat exchanger, providing additional protection against corrosion.

Safety Features

Includes freeze, overheat, surge protection and troubleshooting diagnostic codes.

Endless Hot Water

The comprehensive line of A. O. Smith tankless water heaters are an excellent whole-home water heating solution that supply endless hot water.

How it Works

The comprehensive line of A. O. Smith tankless water heaters provide hot water on-demand. When a hot water tap is opened, a flow sensor sends an activation signal to the onboard computer. The computer then activates the combustion system. Heat is transferred to the water as it flows through the heat exchanger and an outgoing water temperature sensor keeps water temperature to within +/- 1F of set point. Once the hot water tap is closed, the heater automatically turns off.




limited warranty


thermal efficiency

CSA International Low Lead Content Certification in compliance with U.S. and Canadian safety standards on gas components
CSA International Design Certification The CSA Blue Star indicates the product is certified to applicable U.S. standards for appliances using gas or other petroleum fuel
CSA International Certification in compliance with U.S. and Canadian for gas appliances and other liquid petroleum, LP, propane products

Product Specifications

Tech Specs
Emissions: Low NOx
Maximum BTUs: 240,000
Minimum BTUs: 24,000
Thermal Efficiency: 82%
Limited Heat Exchanger Warranty: 10 Years
Limited Parts Warranty: 5 Years
Water Connection Location: Bottom
Water Connection Size: 3/4"
Heat Exchanger: HRS35 Copper Alloy
Secondary Heat Exchanger: Stainless Steel
Voltage: 120
Remote Control: Yes
Technology: Non-Condensing
Dimensions & Venting
Type: Space Saving
Height: 23 5/8"
Width: 18 1/2"
Depth: 10"
Product Weight: 59lbs/27kg
Shipping Weight: 66lbs
Vent Type: Power Vent


Rebate and incentive programs provide cash-back to consumers for the purchase of appliances that meet certain energy efficiency standards. Often, these standards are tied to the ENERGY STAR® program.

Cash for Appliances is designed to encourage the purchase of energy efficient appliances. Consumers who purchase ENERGY STAR® or CEE qualified appliances can receive cash rebates. Most states are offering rebates in the $50 to $250 range.


Please click here to download the hi-resolution images.

Need More Hot Water?

There's no reason to run out of hot water. If you're not sure that the ATIO-710-N provides enough hot water for your needs, consider these:

Tankless Water Heater Non-Condensing Indoor 240,000 BTU Natural Gas

  • 10 Year Limited Warranty
  • 240,000 BTU

Vertex™ 100 Power Direct Vent 50-Gallon Gas Water Heater

  • 6 Year Limited Warranty
  • 100,000 BTU

Vertex™ Power Vent 50-Gallon Gas Water Heater

  • 6 Year Limited Warranty
  • 76,000 BTU