Greenstar 100 Condensing Gas Boiler, 79,000 BTU Bosch
Greenstar 100 Condensing Gas Boiler, 79,000 BTU Bosch
Greenstar 100 Condensing Gas Boiler, 79,000 BTU Bosch
Greenstar 100 Condensing Gas Boiler, 79,000 BTU Bosch
Greenstar 100 Condensing Gas Boiler, 79,000 BTU Bosch
Greenstar 100 Condensing Gas Boiler, 79,000 BTU Bosch
Greenstar 100 Condensing Gas Boiler, 79,000 BTU Bosch
Greenstar 100 Condensing Gas Boiler, 79,000 BTU
Brand: Bosch
Part#: ZBR28-3
Model: Greenstar 100
Ship Pickup
Usually ships: within 2-3 business days
$2,925.75 / each
Free Shipping on any qty
Rebate:
This boiler meets the requirements for a federal tax credit and qualifies for a 30% (up to $600) rebate. Click here for more info.

Bosch Greenstar series, 100-ZBR28 model, wall-mounted heat-only gas condensing boiler with 79,000 BTU (Net) rating. Energy Star rated. Includes built-in pump, LPG conversion kit, 3" twin pipe adapter and outdoor reset control.

Technical Specifications:
  • Input (BTU): 24,600 - 100,800
  • DOE Rating (BTU): 91,000
  • Net IBR Rating (BTU): 79,000
  • Efficiency (AFUE): 95%
  • Boiler Type: Condensing
  • Turndown (Modulation) Ratio: 5 : 1
  • Fuel Type: Natural Gas (NG) or Propane (LP)
  • System Type: Hydronic (Hot Water)
  • Boiler Connections: 1" NPT
  • Gas Connection: 3/4" NPT
  • Condesate Amount Produced: 0.6 Gal/hr (@ 86°F)
  • Max. Working Pressure: 30 psi
  • Max. Boiler Output Water Temperature: 190°F
  • Vent Size: 2" (up to 81ft w/ 1 elbows) or 3" (up to 100ft w/ 4 elbows)
  • Vent Material: PVC, CPVC, Single Wall (Rigid) PolyPropylene, Flex PolyPropylene, Cat III St. Steel
  • Inlet Gas Pressure (WC): 3.5 - 10.5" (for NG), 8 - 13" (for LP)
  • Max. Elevation: 6,000 ft
  • Mounting Type: Wall-hung (wall-mounted)
  • Dimensions (Depth x Width x Height): 13.9" x 17.4" x 33.5"
  • Weight (lbs): 103.6
  • Water Volume (gallons): 0.952.
Top