BOSCH Therm 830 ES Non-Condensing Natural GasTankless Water Heater

Features:

• Built-in freeze protection
  
• Application: Solar thermal, recirculation & space heating applications; Residential or Commercial
  
• Electronic ignition and patented burner design
  
• 83%+ thermal efficiency
• Warranty: 15 year limited warranty on heat exchanger, 3 year warranty if used in direct recirculating applications; 15 year warranty on heater exchanger if used if recirculated through a storage tank such as the Ariston mini-tank; 5 year on all other parts
• Vents vertically or horizontally with 3" or 4" stainless steel

Specifications:

• Max Input: 175, 000 BTU
• Min Input: 19,900 BTU
  
• Capacity @ 35°F Rise: 8.3 gpm
• Capacity @ 55°F Rise: 5.3 gpm
• Intelligent Cascading:  yes
  
• Min. Flow Rate: 0.5 gpm
• Dimensions: 17-7/8" W x 31-1/2" H x 11-1/4" D
• Inlet & Outlet Connections: 3/4" NPT
• Gas Connection: 3/4" NPT
• Max. Water Pressure: 150 psi
• Min. Water Pressure: 30 psi