Condensing ProTankless GWH C 800 ES
Bosch Tankless Model GWH C 800 ES
 

Up to $1500 Federal Tax CreditEarn up to $1500 Federal Tax Credit (30% of purchase and installation) on the GWH C 800 ES!

The new GWH C 800 ES condensing unit offers a flow rate of up to 9.2 gpm, 92% efficiency, and the most advanced features in tankless technology, yet requires only 199,000 BTU/Hr input. It is designed to cascade for increased flow rates and will accommodate recirculating applications as well.

Efficient Condensing Technology: ProTankless GWH C 800 ES
  • 92% thermal efficiency – .91 energy factor
  • Condensing heat exchanger for maximum efficiency
  • This product is Energy StarVents vertically or horizontally with 3" and 4" PVC, CPVC or ABS-DWV
  • Concentric and twin pipe venting options
  • Direct vent, room-sealed combustion
  • Ability to cascade units for increased flow rates
  • Suitable for recirculating applications
  • Outdoor installation using optional kit
  • Available in natural gas (NG) or liquid propane (LP)
  • 15-year warranty

Download Bosch GWH C 800 ES Sell Sheet & Manual below:
   Determining the elevation limit of your 345/450 ESR or 715/C 800 ES Model
FD Code 886 or lower - unit approved for elevations up to 4,500'
FD Code 887-891 - NG unit approved for elevations up to 8,000'
FD Code 887-891 - LP unit approved for elevations up to 4,500'
FD Code 892 or higher - LP and NG units approved for elevations up to 8,000'
Click here or on the icon to view an example of your FD plate code no.
Rating-Plate-with-FD-High-SM.jpg
   
  GWH C 800 ES
Power Input NG: 199,000 BTU/Hr
LP: 199,000 BTU/Hr
Maximum Flow to Activate
 0.65 gallons per minute (gpm)
Flow Rates
 40°F rise@ 9.2 gpm
45°F rise@ 8.0 gpm
55°F rise@ 6.4 gpm
65°F rise@ 5.5 gpm
77°F rise@ 4.6 gpm
90°F rise@ 3.9 gpm
Energy Factor
 NG: .91
LP: .91
Thermal Efficiency
 NG: 92%
LP: 92%
Dimensions H: 30½" W: 17.875" D: 11¼"
Weight 74 lbs.
Modulating Gas Valve Min Firing Rate: 19,900 BTU/Hr
Max Firing Rate: 199,000 BTU/Hr
Ignition Electronic
Accessories Concentric Termination Kit (#BHW60L46)
Outdoor Kit (#PTOK)
[See PDF manual]
Wireless Remote (#TSTAT2)
[See PDF manual]
Tankless Link Cascading Kit (#TLINK)
Pipe Cover (#PTPCES)
[SEE PDF Manual]


GWH C 800 ES Installation Specifications
Gas Connection ¾" Male NPT
Water Connections ¾" Male NPT
NG Gas Pressure Minimum: 4" WC
Maximum: 14" WC
LP Gas Pressure Minimum: 9" WC
Maximum: 14" WC
Water Pressure
 Minimum: 30 PSI
(Well): 40 PSI
Maximum: 150 PSI
Electrical Supply
 120V - (plugs in)
Installation Clearance
 Top: 12"
Front: 1"
Back: 0"
Sides: 1"
Floor: 12"
   
GWH C 800 ES
Bosch Model GWH 715 ES
Technical Support
 
Note: Specifications and product information subject to change without notice.