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Bosch C 1210 ESC NG Tankless Water Heater

Natural Gas Tankless Water Heater Bosch C 1210 ESC NG

Brand: Bosch
SKU: C 1210 ESC NG
Mfg Number:
  • Fuel Type: Natural Gas
  • Input (BTU): 225000
  • Ignition Type: Electronic
  • Gas Connection (In.): 3/4
Availability: Out of Stock
Product Information
Retail: $3,879.54 Price: $3,325.32
You Save: $554.22 (14.3%)


Model C 1210 ESC NG is the highest performance, fully condensing natural gas tankless water heater from Bosch. Unlike traditional non-condensing models, condensing technology captures heat from the exhaust gas and uses it to preheat the incoming cold water. This increases efficiency and reduces emissions - well ahead of the 2012 Low NOX emissions standards set by SCAQMD (California's South Coast Air Quality Management District). The ASME certified tankless water heater supports cascade up to 24 such units to satisfy jobs of all sizes up to 290 GPM.

Bosch C 1210 ESC NG Tankless Water Heater Specifications
ItemWater Heater
Gas Connection (In.)3/4
Gas TypeNatural Gas
Input (BTU)225,000
Ignition TypeElectronic
Draft Hood Size (In.)3 or 4
Depth (In.)11-1/4
Width (In.)17-7/8
Height (In.)30-1/2
Water Connection (In.)3/4
GPM @ 45F Rise9.2
GPM @ 90F Rise4.6
Manufacturers Warranty Length2 Year Limited Warranty on Heat Exchanger, 5 Year Limited Warranty on All Other Parts
StandardsCSA International
IncludesWall Mounting Bracket and Pressure Relief Valve

Bosch C 1210 ESC NG Gas Tankless Water Heater Features:

  • ASME certified
  • Up to 98% thermal efficiency
  • 225,000 BTU maximum input
  • 12.1 gallons per minute capacity at 35F degree rise
  • Cascade up to 24 units to satisfy jobs of all sizes; up to 290 GPM
  • Minimum activation flow rate of 0.5 gallons per minute
  • Electronic ignition and patented burner design
  • Exclusive safety and precision controls
  • Built in freeze protection
  • Direct vent, vertically or horizontally with PVC, CPVC or ABS-DWV
  • Concentric and twin pipe venting options
  • Can be used in tank loading, solar thermal, recirculation, radiant floor and space heating applications
  • Space saving design with 100% serviceable parts and easy access
  • Available in NG

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