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.
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150G-400ASME CONSTRUCTED MULTI-FLUE INDUSTRIAL WATER HEATER WITH POWER GAS BURNERView ProductModel: 150G-400BTU: 400,000 (117.23)Gal: 160 gallonSKU: 56701 -
75W-300SD-NANON-ASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 75W-300SD-NABTU: 300,000 (87.92)Gal: 75 gallonSKU: 55130 -
66W-370SD-NANON-ASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 66W-370SD-NABTU: 370,000 (108.44)Gal: 65 gallonSKU: 55134
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80W-425SD-NANON-ASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 80W-425SD-NABTU: 425,000 (124.56)Gal: 80 gallonSKU: 55144
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75W-300SD-NA-AASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 75W-300SD-NA-ABTU: 300,000 (87.92)Gal: 75 gallonSKU: 55132
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66W-370SD-NA-AASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 66W-370SD-NA-ABTU: 370,000 (108.44)Gal: 65 gallonSKU: 55136
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66W-399SD-NA-AASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 66W-399SD-NA-ABTU: 399,999 (117.23)Gal: 65 gallonSKU: 55139
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80W-425SD-NA-AASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 80W-425SD-NA-ABTU: 425,000 (124.56)Gal: 80 gallonSKU: 55146
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66W-370SD-XANON-ASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 66W-370SD-XABTU: 370,000 (108.44)Gal: 65 gallonSKU: 55135
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80W-425SD-XANON-ASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 80W-425SD-XABTU: 425,000 (124.56)Gal: 80 gallonSKU: 55145
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200G-450ASME CONSTRUCTED MULTI-FLUE INDUSTRIAL WATER HEATER WITH POWER GAS BURNER
View ProductModel: 200G-450BTU: 450,000 (131.88)Gal: 192 gallonSKU: 56656 -
361PG MIDCONON-ASME POWER GAS WATER HEATER WITH MIDCO RE4400DS GAS BURNERView ProductModel: 361PG MIDCOBTU: 385,000 (112.83)Gal: 91 gallonSKU: 58140 -
80W-505SD-NANON-ASME CONSTRUCTED, NATURAL GAS BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATERView ProductModel: 80W-505SD-NABTU: 505,000 (148.00)Gal: 80 gallonSKU: 55160
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OT300N2OptiTherm modulating condensing high effeciency commercial water heater. 119 gallons. 300,000 BTU/hr. Natural Gas. NSF/ANSI Certified. UL ListedView ProductModel: OT300N2BTU: 300,000 (87.92)Gal: 119 gallonSKU: 55667-2 -
OT400N2OptiTherm modulating condensing high effeciency commercial water heater. 119 gallons. 400,000 BTU/hr. Natural Gas. NSF/ANSI Certified. UL ListedView ProductModel: OT400N2BTU: 400,000 (117.23)Gal: 119 gallonSKU: 55670-2