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The 830 ES from Bosch offers advanced software, safety and precision controls but requires only 175,000 BTU/Hr input. The 830 ES is ideal for busy households yet is also designed to support Intelligent Cascading, up to 24 units for larger homes.

Therm 830 ES Specifications:

• Non-Condensing
• Residential or Commercial Application
• 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
• 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 - Indoor or Outdoor (for outdoor, kit required)Dimensions (w x h x d) 17 7/8" x 31½" x 11¼"Weight (lbs.) 67Inlet Connection ¾" NPTOutlet Connection ¾" NPTGas Connection ¾" NPTMax Water Pressure 150 psiMin Water Pressure 30 psiMin NG Presure 3.5" WCCondensing Heat Exchanger n/aVenting Options Stainless SteelVent Maximun Run 61.5'Energy Star Rated Yes

Features & Benefits:

• 83%+ thermal efficiency
• 175,000 BTU maximum input
• 8.3 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
• Built in freeze protection
• Vents vertically or horizontally with 3” or 4” stainless steel
• Can be used in solar thermal, recirculation, and space heating applications
• Built for durability and serviceability with 15-year warranty and 20+ year life expectancy
• Available in NG and LP models
• Optional pipe cover and wireless remote control available

Warranty:

• 15 year limited warranty on heat exchanger; 3 year warranty if used in direct recirculating applications
• 15 year warranty on heat exchanger if used if recirculated through a storage tank such as the Ariston mini-tank
• 5 year warranty on all other parts