Greentherm C1050ES

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Condensing technology with 96% thermal efficiency and ENERGY STAR rating

Condensing Technology With Energy factor of 0.95 and ENERGY STAR Rating 

The Bosch Greentherm model C 1050 ES has Energy Factor 0.95, and is equipped with an automated and fully modulating bypass for unsurpassed DHW temperature stability.
Greentherm C 1050 ESSpecifications
Condensing/Non-Condensing Condensing
Application Residential or Commercial
Max Input (BTU) 199,000
Min Input (BTU) 19,900
Capacity at 35°F Rise (gpm) 10.7
Capacity at 55°F Rise (gpm) 6.8
Intelligent Cascading Yes
Min Flow Rate 0.50 gpm
Temp Range (°F) 100 - 140
Temp Stability (°F) +/- 2
Default Temp (°F) 122
Energy Factor .95
Thermal Efficiency 96%
Installation Options Indoor or Outdoor
Dimensions (w x h x d) 17.875" x 30½" x 11¼"
Weight (lbs.) 74
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, Cat III, Stainless Steel
Outdoor Kit and Polypropylene
Vent Maximun Run 63'
Energy Star Rated Yes
* 3 Years if used in direct recirculation applications See full details in "Warranty" section


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