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Bosch C 1210 ES NG Tankless Water Heater

Natural Gas Tankless Water Heater Bosch C 1210 ES NG

Brand: Bosch
SKU: C 1210 ES 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: $3,623.76 Price: $3,106.08
You Save: $517.68 (14.3%)


Model C 1210 ES 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). Perfect for residential or commercial applications, the unit offers a 12.1 gpm hot water capacity at 35 degree F rise and features electronic ignition and patented burner design.

Bosch C 1210 ES 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 Length15 Year Limited Warranty on Heat Exchanger, 2 Year Limited Warranty on All Other Parts
StandardsCSA International
IncludesWall Mounting Bracket and Pressure Relief Valve

Bosch C 1210 ES NG Gas Tankless Water Heater Features:

  • Up to 98% thermal efficiency
  • 225,000 BTU maximum input
  • 12.1 gallons per minute capacity at 35F degree rise
  • 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 solar thermal, recirculation, and space heating applications
  • Built for durability and serviceability with 15-year warranty and 20+ year life expectancy
  • Available in NG

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