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 37-45 of 60

per page
Set Descending Direction

Items 37-45 of 60

per page
Set Descending Direction
  1. 51PG CARLIN
    POWER GAS WATER HEATER WITH CARLIN EC200 GAS BURNER
    Model: 51PG CARLIN
    BTU: 152,000 (44.55)
    Gal: 50 gallon
    SKU: 58021
    View Product
  2. 72PG MIDCO
    POWER GAS WATER HEATER WITH CARLIN 98590FR17172 GAS BURNER
    Model: 72PG MIDCO
    BTU: 199,000 (58.32)
    Gal: 67 gallon
    SKU: 58050
    View Product
  3. 72PG CARLIN
    POWER GAS WATER HEATER WITH CARLIN EC300 GAS BURNER
    Model: 72PG CARLIN
    BTU: 199,000 (58.32)
    Gal: 67 gallon
    SKU: 58040
    View Product
  4. 120PG MIDCO
    POWER GAS WATER HEATER WITH MIDCO EC200 GAS BURNER
    Model: 120PG MIDCO
    BTU: 155,000 (45.43)
    Gal: 113 gallon
    SKU: 58130
    View Product
  5. 120PG CARLIN
    POWER GAS WATER HEATER WITH CARLIN 98590FR112 GAS BURNER
    Model: 120PG CARLIN
    BTU: 155,000 (45.43)
    Gal: 113 gallon
    SKU: 58127
    View Product
  6. 361PG MIDCO
    NON-ASME POWER GAS WATER HEATER WITH MIDCO RE4400DS GAS BURNER
    Model: 361PG MIDCO
    BTU: 385,000 (112.83)
    Gal: 91 gallon
    SKU: 58140
    View Product
  7. 541PG-Nat.MIDCO
    NON-ASME POWER GAS WATER HEATER WITH MIDCO RE47008A GAS BURNER
    Model: 541PG-Nat.MIDCO
    BTU: 623,000 (182.58)
    Gal: 83 gallon
    SKU: 58165
    View Product
  8. 541PG-LP MIDCO
    NON-ASME POWER GAS WATER HEATER WITH MIDCO RE47008A L.P. GAS BURNER
    Model: 541PG-LP MIDCO
    BTU: 623,000 (182.58)
    Gal: 83 gallon
    SKU: 58170
    View Product
  9. 541PG NAT MIDCO ASME
    ASME CONSTRUCTION, POWER GAS WATER HEATER WITH MIDCO RE4700BA NATURAL GAS BURNER
    Model: 541PG NAT MIDCO ASME
    BTU: 623,000 (182.58)
    Gal: 83 gallon
    SKU: 58180
    View Product