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Gas Tankless Water Heaters
Therm C 1210 ES
Energy Efficient
Highest performance, efficiency and flow rate
Therm C 1210 ES
Product Specifications
This is the highest performance, fully condensing 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).
Features & Benefits
- 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 and LP models
Warranty
15 year limited warranty on heat exchanger; 3 year warranty if used in direct recirculating applications
15 year warranty on heat exchanger if used if recirculated through a storage tank such as the Ariston mini-tank
5 year warranty on all other parts
Bosch Warranty Details
| Therm C 1210 ES | Specifications |
|---|---|
| Condensing/Non-Condensing | Condensing |
| Application | Residential or Commercial |
| Max Input (BTU) | 225,000 |
| Min Input (BTU) | 25,000 |
| Capacity at 35°F Rise (gpm) | 12.1 |
| Capacity at 55°F Rise (gpm) | 7.7 |
| Intelligent Cascading | Up to 24 Units |
| Min Flow Rate | 0.5 GPM |
| Temp Range (°F) | 100-140 |
| Temp Stability (°F) | +/- 2 |
| Default Temp (°F) | 122 |
| Energy Factor | n/a |
| Thermal Efficiency | 94% |
| Installation Options | Indoor or Outdoor (for outdoor, kit required) |
| Dimensions (w x h x d) | 17 7/8" x 30½" x 11¼" |
| Weight (lbs.) | 88 |
| Inlet Connection | ¾" NPT |
| Outlet Connection | ¾" NPT |
| Gas Connection | ¾" NPT |
| Max Water Pressure | 150 psi |
| Min Water Pressure | 30 psi |
| Min NG Presure | 3.5" WC |
| Condensing Heat Exchanger | Aluminum |
| Venting Options | PVC, CPVC, ABS, Stainless Steel |
| Vent Maximun Run | 63' |
| Energy Star Rated | n/a |
| For models C 1210 ES/ESC : 35°F capacity is based on installation with a mixing valve to overcome typical pressure loss through the water heater and system. | - |