• ENERGY STAR® certified with a Uniform Energy Factor of 0.95
• Easily add X3® Scale Prevention any time as an optional accessory with a bypass cartridge to maintain like-new performance (sold separately)
• Delivers robust, on-demand performance and the flexibility to install in practically any residential setting
• Patented Heat Exchanger features a heavy-duty stainless-steel design with only two weld points that improves reliability and is more resistant to scale buildup and corrosion
• Integrated Recirculation Pump to reduce wait times at the farthest fixtures
• Convert Natural Gas to Liquid Propane with the included field conversion kit
• Connect ADAPT™ tankless models to the internet with optional WiFi module (sold separately)
• Set and review recirculation schedules (up to two); check heater status and error codes with the built-in Control Display
• Optional Remote Recirculation Kit engages heater and recirculation at a touch of a button for on-demand hot water

A. O. Smith’s ADAPT™+ Premium condensing gas tankless water heaters deliver robust, on-demand performance and the flexibility to install in practically any residential setting. Easily add scale prevention protection by replacing the bypass cartridge with an optional X3 cartridge sold separately — which can make the heat exchanger last up to three times longer than a standard tankless water heater while maintaining like-new performance. The ADAPT™ line features a built-in Control Display for setting and reviewing up to two recirculating schedules; as well as checking heater status and error codes. Manage temperature settings and activate the heater and recirculation remotely with optional kits (sold separately). All models are ENERGY STAR® certified and extremely efficient with a Uniform Energy Factor of 0.95 and also comply with Ultra-Low NOx regulations. All ADAPT™ models are field convertible from Natural Gas to Liquid Propane, kit included, and can be installed indoors or outdoors (with an Outdoor Vent Cap Kit sold separately). Cascade up to 12 like heaters together for larger applications requiring multiple water heaters to work in conjunction, cable included.

• UEF 0.95
• Maximum BTUs 180,000
• Power Source GAS
• Limited Parts Warranty 5 Years
• Water Connection Location BOTTOM
• Water Connection Size 3/4-in"
• Emissions Ultra-Low NOx
• ASME Certified No
• Amperes 5
• Destination Country US
• ENERGY STAR® Certified Yes
• Flue Diameter 2.00
• Fuel Source NATURAL
• Ignition Type Electronic Hot Surface Igniter
• Installation Type BOTH
• Limited Heat Exchanger Warranty 15 Years
• Max Flow Rate 5.3 GPM
• Minimum BTUs 9,000
• Application RESIDENTIAL
• Product Tier ProLine® XE
• Shipping Height 20.75"
• Shipping Length 40"
• Shipping Width 22.25"
• Side Loop No
• Voltage 120

Dimension & Venting

• Type Water Heater
• Height 34"
• Width 16.53"
• Shipping Weight 125 lbs
• Vent Material ABS, PVC, CPVC and polypropylene