Bosch Therm 940 ES NG 9.4 GPM 199000 BTU Non Condensing Natural Gas

SKU: 7703311075
List price: $1,349.00

bosch therm 940 es gas tankless water heaterHighest capacity non-condensing model was designed to meet the demands of busy households, and offers premium features you expect from Bosch. This model can be installed almost anywhere thanks to its sealed combustion and dual-fan technology.

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bosch therm 940 es tankless water heater

  • Highest capacity non-condensing model
  • 83%+ thermal efficiency
  • 199,000 BTU maximum input
  • 9.4 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
  • Vents vertically or horizontally with 3? or 4? stainless steel
  • Can be used in solar thermal, recirculation applications
  • Built for durability and serviceability with 15-year warranty and 20+ year life expectancy
  • Available in NG and LP models
  • Also available as an outdoor model, 940 EFO
  • Mobile home certified


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Therm 940 ES Specifications
Condensing/Non-Condensing Non-Condensing
Application Residential or Commercial
Max Input (BTU) 199,000
Min Input (BTU) 19,900
Capacity at 35F Rise (gpm) 9.4
Capacity at 55F Rise (gpm) 6.0
Intelligent Cascading Yes
Min Flow Rate 0.50 gpm
Temp Range (F) 100 - 140
Temp Stability (F) +/-2
Default Temp (F) 122
Energy Factor .83
Thermal Efficiency 83%
Installation Options Indoor or Outdoor (for outdoor, kit required)
Dimensions (w x h x d) 17 7/8" x 30" x 11"
Weight (lbs.) 67
Inlet Connection 3/4" NPT
Outlet Connection 3/4" NPT
Gas Connection 3/4" NPT
Max Water Pressure 150 psi
Min Water Pressure 30 psi
Min NG Presure 3.5" WC
Condensing Heat Exchanger n/a
Venting Options Stainless Steel
Vent Maximun Run 61'
Energy Star Rated Yes
For models C 1210 ES/ESC : 35F capacity is based on installation with a mixing valve to overcome typical pressure loss through the water heater and system. -
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