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ATHR-180X3 Adapt™ Premium Condensing Ultra-Low Nox 180,000 BTU/hr Natural Gas Tankless Water Heater with X3® Scale Prevention Technology
AOSATHR180X3
MFG #: 100374811
- Flow Rate: 10.5 gpm Max
- Fuel Type: Natural Gas
- Indoor / Outdoor: Indoor / Outdoor
- Ultra Low NOx: Yes
- Vent Type: Power Direct
- Dimensions: 44.6 in H x 16.1 in D x 16.5 in W
- Manufacturer: A.O. Smith
- Manufacturer #: 100374811
- Series: Adapt
- temHeatingCapacity: 180,000 BTU/hr
- Voltage Rating: 120 V
- Weight: 104 lb
Delivering robust, on-demand performance, these high-efficiency heaters install in practically any residential setting. The single stainless steel, heavy-duty heat exchanger design is more resilient to
scale buildup and corrosion and when coupled with X3 Scale Prevention Technology, there is zero lifetime descaling maintenance required.
Looking for model-specific repair or replacement parts? Enter the unit’s serial number into the A.O. Smith Parts Finder.
Looking for model-specific repair or replacement parts? Enter the unit’s serial number into the A.O. Smith Parts Finder.
- Features
- Includes
- Integrated Recirculation Pump
- Field convertible from Natural Gas to Liquid Propane, Kit Included
- 22:1 Turndown Ratio
- Max flow rate 10.5 GPM, 0.4 GPM activation
- 1/2" Gas Line
- Venting Flexibility 2" up to 75' & 3" up to 150'
- **Outdoor Vent Cap Kit Required, Kit Sold Separately
X3® Scale Prevention Technology