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Commercial water heatersENERGY STAR certified

Burnham by U.S. Boiler CTDW1000L

999 kBtu/h gas tankless water heater.

Input rate

999 kBtu/h

Storage

9 gal

Thermal efficiency

0.98

Fuel

Gas, Propane

Of 207 certified gas tankless commercial water heaters, 9 have a higher thermal efficiency than the CTDW1000L (0.98).

Maker
Burnham by U.S. Boiler
Model
CTDW1000L
Type
Gas Tankless
Fuel
Gas, Propane
Storage
9 gal
Thermal efficiency
0.98
Input rate
999 kBtu/h
On the market since
Apr 2023
ENERGY STAR certified
26 Jul 2024

Source: ENERGY STAR certified commercial water heaters dataset, US EPA, record 2648736, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

Other makers

Machines comparable to the CTDW1000L

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

ModelTypeFuelStorageInput rate
Lochinvar AWH1000L SERIES 1**Gas TanklessPropane9 gal999 kBtu/h
Lochinvar AWH1000N SERIES 1**Gas TanklessGas9 gal999 kBtu/h
A. O. Smith PWH1000NP*Gas TanklessGas, Propane9 gal999 kBtu/h
Laars NT2V0999Gas TanklessGas8 gal999 kBtu/h
Bradford White BNT2V0999Gas TanklessGas8 gal999 kBtu/h
THERMAL SOLUTIONS AMPW1000LGas TanklessGas, Propane9 gal999 kBtu/h

Burnham by U.S. Boiler

More Burnham by U.S. Boiler commercial water heaters

ModelTypeFuelStorageInput rate
CTDW800Gas TanklessGas, Propane7 gal800 kBtu/h
CTDW650Gas TanklessGas, Propane6 gal650 kBtu/h
CTDW500Gas TanklessGas, Propane5 gal500 kBtu/h
CTDW400Gas TanklessGas, Propane4 gal399 kBtu/h

All Burnham by U.S. Boiler commercial water heaters