Supplementary Document

Bosch Therm 940 ESO
This outdoor version of the 940ES
ships with everything needed for
outdoor installation.
Bosch Therm 940 ES

199,000 BTU/Hr Max
19,900 BTU/Hr Min

83% Thermal efciency

9.4 gallons per minute capacity

Available in NG and LP models

Energy Factor: 0.83

100°F - 140°F temperature range

100°F - 184°F with High Temp Kit

Intelligent Cascading up to 24 units

Altitude tested to 8,000 ft.

Vents with 3” or 4” stainless steel
Bosch Therm 830 ES

175,000 BTU/Hr Max
19,900 BTU/Hr Min

83% Thermal efciency

8.3 gallons per minute capacity

Available in NG and LP models

Energy Factor: 0.83

100°F - 140°F temperature range

100°F - 184°F with High Temp Kit

Intelligent Cascading up to 24 units

Altitude tested to 8,000 ft.

Vents with 3“ or 4“ stainless steel
Bosch Therm 660 EFO
This outdoor version of the 660 EF
ships with everything needed for
outdoor installation.
Bosch Therm 660 EF

140,000 BTU/Hr Max
20,000 BTU/Hr Min

83% Thermal efciency

6.6 gallons per minute capacity

Available in NG and LP models

Energy Factor: 0.82

100°F - 160°F temperature range

Altitude tested to 4,500 ft.

Vents with 3” stainless steel
13 | 2011 Commercial water heating solutions
Bosch Therm non-condensing
gas tankless water heaters
*NON-CONDENSING vent configurations
Horizontal twin
pipe termination
Vertical twin
pipe termination
Concentric venting
through the wall
12"
Attention Bosch Contractors:
*For more venting options and installation diagrams,
download individual Product Manuals and Applications
Manual at www.bosch-climate.us