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- Fully modulating, gas fired, tankless water heater with sealed combustion and power vented flue. Indoor and outdoor models available for residential and commercial applications. Supplies hot water to domestic hot water systems and can be used with water storage tanks, recirculation systems and/or combined domestic and heating applications.
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A.O. Smith® Tankless Water Heater, Series: ATI-110U, 140000 Btu/hr Heating, Natural Gas Fuel, 3/4 in NPT Gas Connection, Electronic Spark Ignition, Power/Power Direct Vent, 3 or 4 in Vent, Condensing/Non condensing: Non-Condensing, 6.6 gpm, 0.81, 3/4 in NPT Water Connection, 15 to 150 psi, Ultra Low Nox: Yes, Indoor/Outdoor: Indoor, 13-3/4 in W x 10 in D x 20-1/2 in H, Commercial/Residential/Dual: Commercial/Residential
- Built-in freeze protection
- Manual reset hi limit (up to 194 deg F)
- Overheat cutoff fuse
- Inlet and outlet thermistors for constant temperature monitoring
- Air fuel ratio rod
- Flame sensor
- 4 in category III stainless steel
- 3 in combustion air intake
- 60 ft max length, 6 elbows max
- Indoor models include a built-in temperature controller and a factory-installed power cord as standard features
- Indoor models are certified from sea level from 0 to 10100 ft elevations
- Copper heat exchanger - 25x better heat transfer than stainless steel thus stabilizing outgoing water temperature quicker and reducing pressure drop across the heat exchanger
- Commercial / Residential / DualDualEnergy Factor0.81Flow Rate6.6 gpmHeating Capacity140,000 BTU/hrIndoor / OutdoorIndoorUltra Low NOxYesVent Size3 in, 4 inVent TypePower / Power DirectCondensing / Non-CondensingNon-CondensingDimensions13-3/4 in W x 10 in D x 20-1/2 in HGas Connection3/4 in NPTIgnition TypeElectronic SparkManufacturerA.O. SmithManufacturer #100227692Pressure Rating15 to 150 psiSeriesATI-110UWater Connection3/4 in NPT