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Bock Water Heaters
OptiTherm® 400 MBH High and Thermal Efficiency Commercial Natural Gas Water Heater

Bock Water Heaters OptiTherm® 400 MBH High and Thermal Efficiency Commercial Natural Gas Water Heater

$17,779.00
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Reliable shipping

Flexible returns

Details
OptiTherm® for Optimal Thermal Efficiency:
  • Maximum inputs from 300,000 to 500,000 BTU/hr
  • Up to 6:1 ratio
    • Fully modulating from as low as 80,000 BTU/hr
  • 119/125 gallon capacities
  • Up to 99% thermal efficiency
  • NEW Front venting
  • NEW Minimum gas supply pressure 3.5" WC(NAT) and 8" WC(LP)
  • Automatic cathodic corrosion protection system
    • No sacrificial anode rods
  • PVC/CPVC/ABS venting - 240' maximum power vent length
  • LCD user interface with optional BMS interface
  • Ecomate® insulation
  • Glass-fused-to-steel water tank and heat exchanger
  • SCAQMD certified Ultra-Low NOx
  • Natural gas or propane fuel
  • Stealth Quiet™ operation
  • Fits through a 36-inch door
  • Concentric vent kit available
Turboflue® High Performance Heat Exchanger:
  • Patented helical-fin multi-stage design
  • Superior heat conduction and fuel efficiency
Made in the USA

Materials + Care

We prioritize quality in selecting the materials for our items, choosing premium fabrics and finishings that ensure durability, comfort, and timeless appeal.

Shipping + Returns

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

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