Bosch Therm 830 ES NG 8.3 GPM 175000 BTU Non Condensing Natural Gas

SKU: 7703311076
List price: $1,164.00

bosch therm 830 tankless water heaterFeatures an electronic ignition system and requires either 3 inch or 4 inch diameter stainless steel vent pipe and can be vented either through the side wall or up through the roof. Ideal for busy households yet is also designed to support Intelligent Cascading, up to 24 units for larger homes.

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bosch therm 830 es tankless water heater

  • Suitable for residential or commercial applications
  • 83%+ thermal efficiency
  • 175,000 BTU maximum input
  • 8.3 gallons per minute capacity at 35F degree rise
  • Cascade up to 24 units to satisfy jobs of all sizes; up to 199 GPM
  • 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
  • Vents vertically or horizontally with 3? or 4? stainless steel
  • Can be used in tank loading, solar thermal, recirculation, radiant floor and space heating applications
  • Space saving design with 100% serviceable parts and easy access
  • Mobile home certified


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Therm 830 ES Specifications
Condensing/Non-Condensing Non-Condensing
Application Residential or Commercial
Max Input (BTU) 175,000
Min Input (BTU) 19,900
Capacity at 35?F Rise (gpm) 8.3
Capacity at 55?F Rise (gpm) 5.3
Intelligent Cascading Yes
Min Flow Rate 0.5 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 31?" x 11?"
Weight (lbs.) 67
Inlet Connection ?" NPT
Outlet Connection ?" NPT
Gas Connection ?" 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 61.5'
Energy Star Rated Yes
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