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- Ultra-Low NOx gas tankless water heaters with condensing technology featuring an unprecedented 0.95 Energy Factor which lowers operating costs and is environmentally friendly.
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A.O. Smith® Tankless Water Heater, Series: ATI-340H, 180000 Btu/hr Heating, Natural Gas, 3/4 in NPT Gas Connection, Electronic Spark Ignition, Power Direct Vent, 3 in, 4 in Vent, Condensing/Non Condensing: Condensing, 8 gpm, 0.95, 3/4 in NPT Water Connection, 15 to 150 psi, Ultra Low NOx: Yes, Indoor/Outdoor: Indoor, 17-3/4 in W x 11-1/4 in D x 23-5/8 in H, Dual
- Ultra low NOx emissions
- Primary heat exchanger is constructed of a commercial grade copper that is more resilient to erosion
- Copper is 25x better at heat transfer than stainless steel thus stabilizing outgoing water temperatures quicken
- Secondary heat exchanger is made of type 316l stainless steel to protect against corrosion
- Air-fuel ratio (AFR) sensor, exhaust and water temperature safety control, overheat cut-off fuse
- Exhaust, 3 in PVC venting up to 70 ft or 4 in PVC venting up to 100 ft
- Provides flexible venting with PVC, CPVC or abs pipe for intake and exhaust (solid core only)
- Category III or IV venting can be used
- Certified from sea level to 10100 ft elevation
- Indoor model - Built-in temperature controller and advanced diagnostics to simplify troubleshooting
- Commercial / Residential / DualDualEnergy Factor0.95Flow Rate8 gpmHeating Capacity180,000 BTU/hrIndoor / OutdoorIndoorUltra Low NOxYesVent Size3 in, 4 inVent TypePower DirectCondensing / Non-CondensingCondensingDimensions17-3/4 in W x 11-1/4 in D x 23-5/8 in HGas Connection3/4 in NPTIgnition TypeElectronic SparkManufacturerA.O. SmithManufacturer #100123391Pressure Rating15 to 150 psiSeriesATI-340HWater Connection3/4 in NPT