Gas Water Heaters

Bock is your first choice for all your commercial gas water heater needs. Our industry leading optiTHERM modulating condensing water heaters in sizes up to 500,000 BTU, provide up to 99% thermal efficiency, have an automatic cathodic protection system, LCD user interface and five year warranty.

Our EZ Fit atmospheric water heaters are easy to install and available in Power Direct Vent, Low NOx, Internal Coil and a host of other models.

Items 19-27 of 50

per page
Set Descending Direction

Items 19-27 of 50

per page
Set Descending Direction
Shop By
  1. ODOT150LP
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 99 gallon • 150,000 BTU/hr • LP Gas • NSF/ANSI certified
    Model: ODOT150LP
    SKU: 55916
    View Product
  2. ODOT150LP-H25
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • Altitudes above 2,000 ft to 5,400 ft max • 99 gallon •150,000 BTU/hr • LP Gas • NSF/ANSI certified
    Model: ODOT150LP-H25
    SKU: 55928
    View Product
  3. 60HEC-125-NA
    HIGH EFFICIENCY CONDENSING STANDARD CONSTRUCTION NATURAL GAS, LO-NOX
    Model: 60HEC-125-NA
    SKU: 55400
    View Product
  4. 60HEC-150-NA
    HIGH EFFICIENCY CONDENSING STANDARD CONSTRUCTION NATURAL GAS, LO-NOX
    Model: 60HEC-150-NA
    SKU: 55405
    View Product
  5. 60HEC-125-NA-A
    HIGH EFFICIENCY CONDENSING ASME CONSTRUCTION NATURAL GAS, LO-NOX
    Model: 60HEC-125-NA-A
    SKU: 55401
    View Product
  6. 60HEC-150-NA-A
    HIGH EFFICIENCY CONDENSING ASME CONSTRUCTION NATURAL GAS, LO-NOX
    Model: 60HEC-150-NA-A
    SKU: 55407
    View Product
  7. 60HEC-125-XA
    HIGH EFFICIENCY CONDENSING STANDARD CONSTRUCTION LP GAS, LO-NOX
    Model: 60HEC-125-XA
    SKU: 55402
    View Product
  8. 60HEC-150-XA
    HIGH EFFICIENCY CONDENSING STANDARD CONSTRUCTION LP GAS, LO-NOX
    Model: 60HEC-150-XA
    SKU: 55409
    View Product
  9. 60HEC-125-XA-A
    HIGH EFFICIENCY CONDENSING ASME CONSTRUCTION LP GAS, LO-NOX
    Model: 60HEC-125-XA-A
    SKU: 55403
    View Product