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.

Shop By

Items 1-9 of 23

Page
per page
Set Descending Direction

Items 1-9 of 23

Page
per page
Set Descending Direction
  1. ODOT150N
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 99 gallon • 150,000 BTU/hr • Natural Gas • NSF/ANSI certified
    Model: ODOT150N
    BTU: 150,000 (43.96)
    Gal: 99 gallon
    SKU: 55910
    View Product
  2. ODOT199N
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 99 gallon • 199,000 BTU/hr • Natural Gas • NSF/ANSI certified
    Model: ODOT199N
    BTU: 199,000 (58.32)
    Gal: 99 gallon
    SKU: 55908
    View Product
  3. ODOT125LP
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 99 gallon • 125,000 BTU/hr • LP Gas • NSF/ANSI certified
    Model: ODOT125LP
    BTU: 125,000 (36.63)
    Gal: 99 gallon
    SKU: 55918
    View Product
  4. 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
    BTU: 150,000 (43.96)
    Gal: 99 gallon
    SKU: 55916
    View Product
  5. ODOT199LP
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 99 gallon • 199,000 BTU/hr • LP Gas • NSF/ANSI certified
    Model: ODOT199LP
    BTU: 199,000 (58.32)
    Gal: 99 gallon
    SKU: 55914
    View Product
  6. ODOT200N-A
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 100 gallon • 199,000 BTU/hr • Natural Gas • ASME certified • NSF/ANSI certified
    Model: ODOT200N-A
    BTU: 199,999 (58.58)
    Gal: 100 gallon
    SKU: 55888
    View Product
  7. ODOT250N-A
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 100 gallon • 250,000 BTU/hr • Natural Gas • ASME certified • NSF/ANSI certified
    Model: ODOT250N-A
    BTU: 250,000 (73.26)
    Gal: 100 gallon
    SKU: 55886
    View Product
  8. ODOT299N-A
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 100 gallon • 299,000 BTU/hr • Natural Gas • ASME certified • NSF/ANSI certified
    Model: ODOT299N-A
    BTU: 299,999 (87.9)
    Gal: 100 gallon
    SKU: 55884
    View Product
  9. ODOT200LP-A
    OptiTHERM Outdoor modulating, condensing high-efficiency commercial water heater • UL Listed for outdoor use in dry, warm climates • 100 gallon • 199,000 BTU/hr • LP Gas • ASME certified • NSF/ANSI certified
    Model: ODOT200LP-A
    BTU: 199,999 (58.58)
    Gal: 100 gallon
    SKU: 55894
    View Product