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41 certified models

THERMAL SOLUTIONS commercial water heaters

Every THERMAL SOLUTIONS water heater certified under ENERGY STAR and listed for the US market, fastest first. Each model page has the full certified specs and comparable machines from other makers.

ModelTypeFuelStorageInput rate
AMP1000CGas TanklessGas, Propane9 gal999 kBtu/h
AMP1000C-OGas TanklessGas, Propane9 gal999 kBtu/h
AMP1000VGas TanklessGas, Propane9 gal999 kBtu/h
AMP1000V-OGas TanklessGas, Propane9 gal999 kBtu/h
AMP1250CGas TanklessGas10 gal1,250 kBtu/h
AMP1250C-OGas TanklessGas10 gal1,250 kBtu/h
AMP1250VGas TanklessGas10 gal1,250 kBtu/h
AMP1250V-OGas TanklessGas10 gal1,250 kBtu/h
AMP1500CGas TanklessGas10 gal1,500 kBtu/h
AMP1500C-OGas TanklessGas10 gal1,500 kBtu/h
AMP1500VGas TanklessGas10 gal1,500 kBtu/h
AMP1500V-OGas TanklessGas10 gal1,500 kBtu/h
AMP400CGas TanklessGas, Propane4 gal399 kBtu/h
AMP400C-OGas TanklessGas, Propane4 gal399 kBtu/h
AMP400VGas TanklessGas, Propane4 gal399 kBtu/h
AMP400V-OGas TanklessGas, Propane4 gal399 kBtu/h
AMP500CGas TanklessGas, Propane5 gal500 kBtu/h
AMP500C-OGas TanklessGas, Propane5 gal500 kBtu/h
AMP500VGas TanklessGas, Propane5 gal500 kBtu/h
AMP500V-OGas TanklessGas, Propane5 gal500 kBtu/h
AMP650CGas TanklessGas, Propane6 gal650 kBtu/h
AMP650C-OGas TanklessGas, Propane6 gal650 kBtu/h
AMP650VGas TanklessGas, Propane6 gal650 kBtu/h
AMP650V-OGas TanklessGas, Propane6 gal650 kBtu/h
AMP800CGas TanklessGas, Propane7 gal800 kBtu/h
AMP800C-OGas TanklessGas, Propane7 gal800 kBtu/h
AMP800VGas TanklessGas, Propane7 gal800 kBtu/h
AMP800V-OGas TanklessGas, Propane7 gal800 kBtu/h
AMPW1000Gas TanklessGas, Propane12 gal999 kBtu/h
AMPW1000LGas TanklessGas, Propane9 gal999 kBtu/h
AMPW1250Gas TanklessGas, Propane12 gal1,250 kBtu/h
AMPW1500Gas TanklessGas, Propane13 gal1,500 kBtu/h
AMPW2000Gas TanklessGas, Propane17 gal1,999 kBtu/h
AMPW2500Gas TanklessGas, Propane36 gal2,500 kBtu/h
AMPW3000Gas TanklessGas, Propane36 gal3,000 kBtu/h
AMPW3500Gas TanklessGas, Propane47 gal3,500 kBtu/h
AMPW400Gas TanklessGas, Propane4 gal399 kBtu/h
AMPW4000Gas TanklessGas, Propane47 gal3,999 kBtu/h
AMPW500Gas TanklessGas, Propane5 gal500 kBtu/h
AMPW650Gas TanklessGas, Propane6 gal650 kBtu/h
AMPW800Gas TanklessGas, Propane7 gal800 kBtu/h

Source: ENERGY STAR certification data, US EPA. Data build 2026-09-29. Brand names are as the maker certified them, with obvious variant spellings merged.