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 |
| Item | Water Heater |
| Type | Tankless |
| Gas Connection (In.) | 3/4 |
| Gas Type | Natural Gas |
| Input (BTU) | 225,000 |
| Ignition Type | Electronic |
| 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 Rise | 9.2 |
| GPM @ 90F Rise | 4.6 |
| Manufacturers Warranty Length | 2 Year Limited Warranty on Heat Exchanger, 5 Year Limited Warranty on All Other Parts |
| Standards | CSA International |
| Includes | Wall 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