Skip to content
BusinessMachines.com
Menu

Commercial water heatersENERGY STAR certified

BOCK OT500*2-***

500 kBtu/h gas storage-type instantaneous water heater.

Input rate

500 kBtu/h

Storage

119 gal

Thermal efficiency

0.96

Fuel

Gas, Propane

Of 43 certified gas storage-type instantaneous commercial water heaters, 11 have a higher thermal efficiency than the OT500*2-*** (0.96).

Maker
BOCK
Model
OT500*2-***
Type
Gas Storage-type Instantaneous
Fuel
Gas, Propane
Storage
119 gal
Thermal efficiency
0.96
Input rate
500 kBtu/h
Standby loss
1,400 Btu/h
On the market since
Jan 2026
ENERGY STAR certified
9 Oct 2025

Source: ENERGY STAR certified commercial water heaters dataset, US EPA, record 4510862, data build 2026-09-29. Figures are as the maker certified them. How we use this data.

Other makers

Machines comparable to the OT500*2-***

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

ModelTypeFuelStorageInput rate
Bradford White EF120T500*N*3Gas Storage-type InstantaneousPropane119 gal500 kBtu/h
Laars LUHE120T500*N*3Gas Storage-type InstantaneousGas119 gal500 kBtu/h
Laars LUHE120T500*X*3Gas Storage-type InstantaneousPropane119 gal500 kBtu/h
American BTH 500* 3**Gas Storage-type InstantaneousGas, Propane119 gal500 kBtu/h
State BTH 500* 3**Gas Storage-type InstantaneousGas, Propane119 gal500 kBtu/h
Ruud GHE119S*-500(A)Gas Storage-type InstantaneousGas, Propane119 gal500 kBtu/h

BOCK

More BOCK commercial water heaters

ModelTypeFuelStorageInput rate
60HEC-125-NA-****Gas StorageGas60 gal125 kBtu/h
60HEC-125-XA-****Gas StoragePropane60 gal125 kBtu/h
OT400*2-A-***Gas StorageGas, Propane125 gal400 kBtu/h
OT400*2-***Gas StorageGas, Propane119 gal400 kBtu/h
OT500*2-A-***Gas Storage-type InstantaneousGas, Propane125 gal500 kBtu/h
ODOT400*2-A-***Gas StorageGas, Propane125 gal400 kBtu/h
ODOT400*2-***Gas StorageGas, Propane119 gal400 kBtu/h
ODOT500*2-A-***Gas Storage-type InstantaneousGas, Propane125 gal500 kBtu/h

All BOCK commercial water heaters