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Commercial water heatersENERGY STAR certified

THERMAL SOLUTIONS AMPW4000

3,999 kBtu/h gas tankless water heater.

Input rate

3,999 kBtu/h

Storage

47 gal

Thermal efficiency

0.98

Fuel

Gas, Propane

Of 207 certified gas tankless commercial water heaters, 9 have a higher thermal efficiency than the AMPW4000 (0.98).

Maker
THERMAL SOLUTIONS
Model
AMPW4000
Type
Gas Tankless
Fuel
Gas, Propane
Storage
47 gal
Thermal efficiency
0.98
Input rate
3,999 kBtu/h
On the market since
Jun 2021
ENERGY STAR certified
30 Jul 2024

Source: ENERGY STAR certified commercial water heaters dataset, US EPA, record 2636099, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

Other makers

Machines comparable to the AMPW4000

Certified commercial water heaters from other makers, same color class, within 20% of its speed.

ModelTypeFuelStorageInput rate
Bryan Steam, LLC BFITW4000Gas TanklessGas, Propane47 gal3,999 kBtu/h
Lochinvar AWH4000(N,L)Gas TanklessGas, Propane46 gal4,000 kBtu/h
A. O. Smith PWH4000(N,L)(P)(-CAN)Gas TanklessGas, Propane46 gal4,000 kBtu/h
Bryan Steam, LLC BFITW3500Gas TanklessGas, Propane47 gal3,500 kBtu/h
Intellihot iQ3001Gas TanklessGas, Propane12 gal3,001 kBtu/h
Lochinvar AWH3000(N,L)Gas TanklessGas, Propane29 gal3,000 kBtu/h

THERMAL SOLUTIONS

More THERMAL SOLUTIONS commercial water heaters

ModelTypeFuelStorageInput rate
AMPW500Gas TanklessGas, Propane5 gal500 kBtu/h
AMPW1000LGas TanklessGas, Propane9 gal999 kBtu/h
AMPW800Gas TanklessGas, Propane7 gal800 kBtu/h
AMPW650Gas TanklessGas, Propane6 gal650 kBtu/h
AMPW3500Gas TanklessGas, Propane47 gal3,500 kBtu/h
AMPW1250Gas TanklessGas, Propane12 gal1,250 kBtu/h
AMPW2500Gas TanklessGas, Propane36 gal2,500 kBtu/h
AMPW2000Gas TanklessGas, Propane17 gal1,999 kBtu/h

All THERMAL SOLUTIONS commercial water heaters