office (214) 630-1984  
fax (214) 630-2253  
toll-free (888) 829-1984  
Skip Navigation Links

Products > Tank Type Gas/Oil Fired Water Heaters

Bock optiTHERM

The optiTHERM is a modulating condensing ultra low NOx Commercial gas water heater, currently offered in sizes from 300,000 to 500,000 BTU. It is a fuel saving, long-lasting, minimal maintenance water heater engineered and built to offer lowest cost operation year after year.

Click for Product Brochure

Click to view the optiTHERM story
Bock EnergySaver Commercial Gas Water Heater

Combines lower operating cost of low Nox gas units with moderate to high demand capacities.

Click for Product Brochure
Bock EZFit Gas Water Heater

A commercial atmospheric Gas Water Heater with a low NOX burner. Includes a best-in-industry five year manufacturer’s warranty.

Click for Product Brochure
Bock High Efficiency Condensing Gas Fired Water Heater

A fully condensing high efficiency option in a small footprint package. This water heater fits most applications.

Click for Product Brochure
Bock Oil Fired Commercial Water Heater

High quality, hard to find oil fired models of upright water heaters.

Click for Product Brochure
Bock Dual Fuel Water Heaters

Some applications require access to alternative fuel source for their hot water systems. Bock has the answer.

Click for Product Brochure