A.O. Smith ATI-340HX3-N 180,000 BTU ATI-340H Condensing Ultra-Low NOx Indoor Tankless Water Heater w/ X3 Scale Prevention (NG)

Product Description

The A.O. SMITH ATI-340HX3-N is a ProLine XE Condensing Ultra-Low NOx Indoor Tankless Water Heater with X3 Scale Prevention Technology. It delivers continuous hot water and protects against scale build-up. It uses up to 180,000 BTU/hr of natural gas. This heater is efficient with a Uniform Energy Factor of 0.95 and complies with Ultra-Low NOx regulations.

• ENERGY STAR certified
• Maintains like-new performance for the life of the product vs. tankless models without X3 that show 10% efficiency reduction in the first 1.5 years
• Primary commercial-grade copper heat exchanger is 25x better than stainless steel at heat transfer, stabilizing outgoing water temperatures quicker

Product Highlights

The ATI-340HX3-N tankless water heater provides continuous hot water with commercial-grade components and X3 Scale Prevention Technology for long-lasting performance.

Product Information

Standard Information

• Brand: A.O. SMITH
• Manufacturer Part Number: ATI-340HX3-N
• Country of Origin: US

Technical Specifications

• Product Type: Tankless Heater
• Type: Condensing
• Inlet Gas Pressure: 4.0-10.5"W.C
• Installation Type: Indoor Only
• Water Connection: 3/4"
• Gas Connection: 3/4 in NPT
• Energy Factor: 0.95
• Fuel Type: Natural Gas
• BTU (Min): 15000
• BTU (Max): 180000
• Gas Input: 15000-180000 BTU/h
• Voltage: 120v
• Max Flow (GPM): 8
• Width (Inches): 17-3/4"
• Height (Inches): 23.625"
• Depth (Inches): 11-1/4"
• Vent Type: Power
• 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: 180,000
• Power Source: GAS
• Water Connection Location: BOTTOM
• Emissions: Ultra-Low NOx
• ASME Certified: No
• Digital Display: Yes
• ENERGY STAR Certified: Yes
• Flue Diameter: 4.00
• Fuel Source: NATURAL
• GPM (@67 F Temp Rise): 5.4 GPM
• Minimum BTUs: 15,000
• Product Tier: ProLine XE
• Side Loop: No
• Vent Size: 3/4 in
• Commercial/Residential/Dual: Commercial/Residential
• Condensing/Non Condensing: Condensing
• Heating Capacity: 180000 Btu/hr
• Ignition Type: Electronic Spark
• Indoor/Outdoor: Indoor
• Pressure Rating: 15 to 150 psi
• Series: ATI-340HX3-N
• Ultra Low NOx: No
• Application Type: For Residential
• Manufacturer: A.O. Smith
• Gas Type: NG Natural Gas