Skip to content

A. O. Smith ATO-340H-N Outdoor Natural Gas Ultra-Low NOx Condensing Tankless Water Heater

Original price $1,200.00 - Original price $1,219.95
Original price
$1,200.00
$1,200.00 - $1,219.95
Current price $1,200.00

SAME-DAY SHIPPING
NO HASSLE RETURNS
SATISFACTION GUARANTEE

180,000 BTU tankless gas water heater with Ultra-Low NOx emissions

Features

• 180,000 BTUs
• Maximum flow rate of 6.6 GPM
• ENERGY STAR qualified
• Energy factor of 0.95
• Meets Ultra-Low NOx emission requirements
• Comes with a 15-year limited warranty
• Built in freeze, overheat, and surge protection

Certifications

Specifications

Emissions (ATI/ATO-110U) Ultra-Low NOx
Maximum BTUs 180,000
Minimum BTUs (Natural Gas)
15,000
Minimum BTUs (Liquid Propane) 13,000
Limited Heat Exchanger Warranty 15 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
Energy Factor 0.95
ENERGY STAR Yes
Remote Control Included
Technology Condensing
Type Space Saving
Height 23 5/8"
Width 17 3/4"
Depth
11 1/4"
Product Weight 58lbs/26kg
Shipping Weight 62lbs

Documentation

Manual
Spec Sheet