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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Items 28-36 of 51

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Items 28-36 of 51

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  1. 100W-250SDLN-XA-A
    ASME CONSTRUCTED, L.P. GAS LO-NOX BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATER
    Model: 100W-250SDLN-XA-A
    BTU: 250,000 (73.26)
    Gal: 100 gallon
    SKU: 55358
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  2. 75W-300SDLN-XA-A
    ASME CONSTRUCTED, L.P. GAS LO-NOX BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATER
    Model: 75W-300SDLN-XA-A
    BTU: 300,000 (87.92)
    Gal: 75 gallon
    SKU: 55364
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  3. 66W-370SDLN-XA-A
    ASME CONSTRUCTED, L.P. GAS LO-NOX BURNER WITH SPARK DAMPER ENERGY SAVER ATMOSPHERIC WATER HEATER
    Model: 66W-370SDLN-XA-A
    BTU: 370,000 (108.44)
    Gal: 65 gallon
    SKU: 55372
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  4. 541PG LP MIDCO ASME
    ASME CONSTRUCTION, POWER GAS WATER HEATER WITH MIDCO RE4700BA LP GAS BURNER
    Model: 541PG LP MIDCO ASME
    BTU: 623,000 (182.58)
    Gal: 83 gallon
    SKU: 58185
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  5. OT300LP2-A
    OptiTherm modulating condensing high effeciency commercial water heater. 125 gallons. 300,000 BTU/hr. LP Gas. ASME Certified. NSF/ANSI Certified. UL Listed
    Model: OT300LP2-A
    BTU: 300,000 (87.92)
    Gal: 125 gallon
    SKU: 55690-2
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  6. OT400LP2-A
    OptiTherm modulating condensing high effeciency commercial water heater. 125 gallons. 400,000 BTU/hr. LP Gas. ASME Certified. NSF/ANSI Certified. UL Listed
    Model: OT400LP2-A
    BTU: 400,000 (117.23)
    Gal: 125 gallon
    SKU: 55692-2
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  7. OT500LP2-A
    OptiTherm modulating condensing high effeciency commercial water heater. 125 gallons. 500,000 BTU/hr. LP Gas. ASME Certified. NSF/ANSI Certified. UL Listed
    Model: OT500LP2-A
    BTU: 500,000 (146.50)
    Gal: 125 gallon
    SKU: 55695-2
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  8. OT300LP2-A-H28
    OptiTherm modulating condensing high effeciency commercial water heater. Altitudes above 2,000 to 7,800 ft max. 125 gallons. 300,000 BTU/hr. LP Gas. ASME Certified. NSF/ANSI Certified. UL Listed
    Model: OT300LP2-A-H28
    BTU: 300,000 (87.92)
    Gal: 125 gallon
    SKU: 55705-2
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  9. OT400LP2-A-H28
    OptiTherm modulating condensing high effeciency commercial water heater. Altitudes above 2,000 to 7,800 ft max. 125 gallons. 400,000 BTU/hr. LP Gas. ASME Certified. NSF/ANSI Certified. UL Listed
    Model: OT400LP2-A-H28
    BTU: 400,000 (117.23)
    Gal: 125 gallon
    SKU: 55710-2
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