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A. O. Smith Gas Tankless Water Heater

Model Numbers: ATO-540H 1**, GT-540X3-NEH 1**, GTS-540-NEH 1**, LTO-540P-N 1**, MCT-199O-N 1**, LCT-199O-N 1**, LTO-540H-N 1**, TK-540P-NEH 1**, GT-540P-NEH 1**, TS-540P-GEH 1**, GTS-540X3-NEH 1**, GT15-540-NO 1**, GTS-540P-NEH 1**, TS-540-GEH 1**, GT-540-NEH 1**, T-H3-OS-N 1**, TCT-199O-N 1**, TS-540X3-GEH 1**, ACT-199O-N 1**, ATO-540P-N 1**, LTO-540HX3-N 1**, SCT-199O-N 1**, ATO-540HX3-N 1**

Key Performance Data

Water Heater
Gas Tankless
Ductless
Packaged Unit
Category
0.95
Uniform Energy Factor
178
Therms Per Yr
Natural Gas
Fuel

Appliances in this system:

Appliance Type Make/Model Appliance Location  
Integrated Water Heater A. O. Smith Integrated Water Heater Indoor View Details

Same as:

Brand Model System Type  
American American Gas Tankless Water Heater
Model numbers: MCT-199O-N 1**
Gas Tankless View Details
A. O. Smith A. O. Smith Gas Tankless Water Heater
Model numbers: ACT-199O-N 1**
Gas Tankless View Details
A. O. Smith A. O. Smith Gas Tankless Water Heater
Model numbers: ATO-540H 1**
Gas Tankless View Details
A. O. Smith A. O. Smith Gas Tankless Water Heater
Model numbers: ATO-540HX3-N 1**
Gas Tankless View Details
A. O. Smith A. O. Smith Gas Tankless Water Heater
Model numbers: ATO-540P-N 1**
Gas Tankless View Details
A. O. Smith A. O. Smith Gas Tankless Water Heater
Model numbers: GT15-540-NO 1**
Gas Tankless View Details
American American Gas Tankless Water Heater
Model numbers: GT-540-NEH 1**
Gas Tankless View Details
American American Gas Tankless Water Heater
Model numbers: GT-540P-NEH 1**
Gas Tankless View Details
American American Gas Tankless Water Heater
Model numbers: GT-540X3-NEH 1**
Gas Tankless View Details
State State Gas Tankless Water Heater
Model numbers: SCT-199O-N 1**
Gas Tankless View Details
Lochinvar Lochinvar Gas Tankless Water Heater
Model numbers: LCT-199O-N 1**
Gas Tankless View Details
Lochinvar Lochinvar Gas Tankless Water Heater
Model numbers: LTO-540H-N 1**
Gas Tankless View Details
Lochinvar Lochinvar Gas Tankless Water Heater
Model numbers: LTO-540HX3-N 1**
Gas Tankless View Details
Lochinvar Lochinvar Gas Tankless Water Heater
Model numbers: LTO-540P-N 1**
Gas Tankless View Details
Reliance Reliance Gas Tankless Water Heater
Model numbers: TS-540-GEH 1**
Gas Tankless View Details
Reliance Reliance Gas Tankless Water Heater
Model numbers: TS-540P-GEH 1**
Gas Tankless View Details
Reliance Reliance Gas Tankless Water Heater
Model numbers: TS-540X3-GEH 1**
Gas Tankless View Details
State State Gas Tankless Water Heater
Model numbers: GTS-540-NEH 1**
Gas Tankless View Details
State State Gas Tankless Water Heater
Model numbers: GTS-540P-NEH 1**
Gas Tankless View Details
State State Gas Tankless Water Heater
Model numbers: GTS-540X3-NEH 1**
Gas Tankless View Details
Takagi Takagi Gas Tankless Water Heater
Model numbers: TCT-199O-N 1**
Gas Tankless View Details
Takagi Takagi Gas Tankless Water Heater
Model numbers: T-H3-OS-N 1**
Gas Tankless View Details
Takagi Takagi Gas Tankless Water Heater
Model numbers: TK-540P-NEH 1**
Gas Tankless View Details