A.O. Smith ATO-240HX3-N Condensing Ultra-Low NOx Outdoor Tankless Water Heater 160,000 BTU

Product Description

The A.O. SMITH ATO-240HX3-N is a condensing ultra-low NOx outdoor tankless water heater. Featuring X3 Scale Prevention Technology, this water heater delivers continuous hot water while protecting against scale build-up. It uses up to 160,000 BTU/hr of natural gas. This tankless water heater is ENERGY STAR certified and complies with Ultra-Low NOx regulations.

• Maintains like-new performance for the life of the product.
• Commercial-grade copper heat exchanger stabilizes outgoing water temperatures quicker.
• Wall-mount design saves valuable space.

Product Highlights

The ATO-240HX3-N tankless water heater provides years of hot water through innovation and quality. It features X3 Scale Prevention Technology and a 15-year limited warranty.

Product Information

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: ATO-240HX3-N
• Country of Origin: US

Technical Specifications

• Product Type: Tankless Water Heater
• Installation Type: Outdoor Only
• Type: Space Saving
• Fuel Type: Natural Gas
• Gas Connection: 3/4"
• Water Connection: 3/4"
• Inlet Gas Pressure: 4.0-10.5"W.C
• BTU (Min): 15000
• Gas Input: 15000 to 160000 BTU/h
• BTU (Max): 160000
• Voltage: 120v
• Max Flow (GPM): 6.6
• Energy Factor: 0.95
• Vent Type: Power Direct Vent
• Application: Residential
• Flow Rate at 40F Temp Rise (GPM): 6.7
• Flow Rate at 50F Temp Rise (GPM): 6.1
• Flow Rate at 60F Temp Rise (GPM): 5
• Flow Rate at 70F Temp Rise (GPM): 4.3
• UEF: 0.95
• Maximum BTUs: 160,000
• Power Source: GAS
• Water Connection Location: BOTTOM
• Emissions: Ultra-Low NOx
• ASME Certified: No
• Destination Country: US
• Digital Display: Yes
• ENERGY STAR Certified: Yes
• Fuel Source: NATURAL
• GPM (@67 F Temp Rise): 4.7 GPM
• Minimum BTUs: 13,000
• Side Loop: No
• HPS Quick Code: 29711
• MPN: AOSATO-240HX3-N
• UPC: 671657270247
• ALTCODES: AOSATO-240HX3-N
• Brand: AO Smith
• Manufacturers: A. O. Smith
• Water Connection Size: 3/4"
• Heat Exchanger: Commercial Grade Copper
• Secondary Heat Exchanger: Stainless Steel
• Technology: Condensing
• Max. Amps: 5.0
• Max. Input Rate for Gas Products (Btu/hr): 160000
• Maximum Gallons Per Minute: 4.7 (High-Usage) Draw Pattern (Intended Usage)
• Uniform Energy Factor (UEF): 0.95
• Therms/year for Natural Gas: 178
• Vent Size 1 (inches): 0
• ENERGY STAR Unique ID: 2408741
• Condition: Brand New
• Item ID: ATO-240HX3-N
• Manufacturer: A.O. Smith
• Gas Type: NG Natural Gas