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Commercial Power Gas Bock Water HeaterBock Large Capacity (Heavy Commercial & Industrial) Gas-Fired Water Heaters

Fan-assisted burners give Bock Power Gas Water Heaters increased recovery rates, clean combustion and higher efficiencies.

All models equipped with U.L. listed Power Gas burners, high speed motors, flame-safety controls with pre-purge and flame rods on J burners; EUV scanners on C burners; pilot and main gas pressure regulators (1 lb maximum inlet pressure) and air switch for proof-of-blower operation. 115V, 60H, single phase (other voltages available).

  • Turboflue® - Bock's patented design is the industry's most advanced and efficient heat exchanger. Simply put, it heats water faster and uses less fuel, which reduces energy costs.
  • C-Glass®- Durable and exclusive porcelain enamel glass is used to line all tanks and Turboflues. Highly resistant to aggressive water. Fresh silica mixed daily to provide the highest quality.
  • Built to last - Hand-crafted from heavy gauge steel. Longer life equals a higher "Return on Investment".
  • Multiple magnesium anode rods - Inhibit corrosion and maximize tank life. Electrolysis attacks the anode rods, not the welded seams of the tank.
  • Double pressure tested - Only Bock pressure tests its tanks twice.
  • Fully welded tank skirt - prevents noxious flue gases from escaping between the tank and jacket.
  • Insulation fiberglass (non CFC foam optional) - decreases standby heat loss.
  • Accurate temperature control - Only Bock offers dual aquastats or operating and high limits, as standard.
  • Spring loaded inspection door - Easy access for inspection and maintenance, also functions as a pressure relief valve.
  • Brass drain valve - Accessible, tamper-proof.
  • Factory installed T&P valve - CSA listed.
  • Multiple large hand holes for easy inspection and maintenance.
  • UL listed.
  • ASME construction available.
  • Integrated 2" steel skid - for safe and easy transfer.
  • Wet leg design - surrounds the combustion chamber with water to capture heat from the refractory.
  • Fan-assisted burner - facilitates proper system draft, provides clean, controlled combustion and higher efficiencies.
  • Externally mounted burner - provides easy installation and maintenance.
  • Direct spark ignition - with flame rod controls provides fail safe operation.
  • Connects to standard chimney - or a power vented system.
  • Barometric draft regulator.
  • LP gas optional.
  • 3 year limited warranty - on steel tank.
  • For your safety (and to comply with the warranty), have all water heater installations and Repairs completed by a licensed and insured contractor. All Bock Water Heaters require field setup and adjustment using combustion testing equipment per NFPA Standards.
  • Residential delivery may not be available for this unit - shipment may be made to your contractor, a commercial location, or to Will Call at the nearest freight terminal. Contact us for more information.
  • Warning: Do not install on combustible flooring. Install in accordance with all local codes and ordinances and with the American Standards Association recommendations, installation of Gas Piping and Gas Appliances, and with the NFPA-31.
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Bock Large Capacity Gas Water Heater - 150 Series (ASME Certification)
Bock 150G-400 Water Heater
176 Gallon

400,000 BTU
Recovery: 439 GPH @ 90°F Rise
Minutes to Recovery: 25
Shipping Wgt. 2,108 lb
Bock 150G-600 Water Heater
168 Gallon

600,000 BTU
Recovery: 659 GPH @ 90°F Rise
Minutes to Recovery: 16
Shipping Wgt. 2208 lb
Bock 150G-800 Water Heater
160 Gallon

800,000 BTU
Recovery: 878 GPH @ 90°F Rise
Minutes to Recovery: 11
Shipping Wgt. 2308 lb
Bock Large Capacity Gas Water Heater - 200 Series (ASME Certification)
Bock 200G-450 Water Heater
221 Gallon
450,000 BTU
Recovery: 494 GPH @ 90°F Rise
Minutes to Recovery: 28
Shipping Wgt. 2,700 lb
Bock 200G-650 Water Heater
212 Gallon
650,000 BTU
Recovery: 713 GPH @ 90°F Rise
Minutes to Recovery: 19
Shipping Wgt. 2,700 lb
Bock 200G-850 Water Heater
204 Gallon
850,000 BTU
Recovery: 893 GPH @ 90°F Rise
Minutes to Recovery: 14
Shipping Wgt. 2,700 lb
Bock 200G-1150 Water Heater
192 Gallon
1,150,000 BTU
Recovery: 1,262 GPH @ 90°F Rise
Minutes to Recovery: 10
Shipping Wgt. 2,700 lb
Bock Large Capacity Gas Water Heater - 250 Series (ASME Certification)
Bock 250G-800 Water Heater
273 Gallon
800,000 BTU
Recovery: 878 GPH @ 90°F Rise
Minutes to Recovery: 19
Shipping Wgt. 3,516 lb
Bock 250G-1000 Water Heater
260 Gallon
1,000,000 BTU
Recovery: 1,098 GPH @ 90°F Rise
Minutes to Recovery: 15
Shipping Wgt. 3,606 lb
Bock 250G-1250 Water Heater
251 Gallon
1,250,000 BTU
Recovery: 1,372 GPH @ 90°F Rise
Minutes to Recovery: 11
Shipping Wgt. 3,666 lb
Bock 250G-1500 Water Heater
242 Gallon
1,500,000 BTU
Recovery: 1,646 GPH @ 90°F Rise
Minutes to Recovery: 9
Shipping Wgt. 3,726 lb


IMPORTANT:  By purchasing this water heater from JupiterHeating.com, the customer is agreeing that the unit will be installed by a licensed, professional heating contractor; that the customer and installer will follow all local zoning regulations, as well as all manufacturer's installation instructions, policies, and warranty requirements; and that the customer has read and understood JupiterHeating.com's Terms of Sale.

Bock Water Heaters

Information Source: Bock Water Heaters