Greenstar 151 Condensing Gas Combi Boiler, 117,000 BTU

Greenstar 151 Condensing Gas Combi Boiler, 117,000 BTU
Views: 3525 Product Code: Greenstar Combi 151

MPN: ZWB42-3

Weight:110.20 lb

Dimensions (L x W x H ): 38.00 x 20.00 x 16.00

Usually ships: 7-10 business days
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The Bosch Greenstar series is a wall-mounted combi gas condensing boiler (heat + tankless DHW) with 117,000 kBTU (net) rating. This terrific boiler by Bosch will fulfill your heating needs and deliver optimal heat all the time.


  • Energy Star rated for superior energy efficiency;
  • Built-in heat pump, exchanger and expansion tank;
  • LPG conversion kit;
  • 3” twin pipe adapter;
  • Outdoor reset control.
Product Specs
Boiler Connections:1" NPT
Boiler Type:Condensing
Condesate Amount Produced:0.9 Gal/hr (@ 86°F)
Dimensions (Depth x Width x Height):13.9" x 17.4" x 33.5"
DOE Rating (BTU):135,000
Domestic Water Connections:3/4" NPT
Efficiency (AFUE):95%
Fuel Type:Natural Gas (NG) or Propane (LP)
Gas Connection:3/4" NPT
Inlet Gas Pressure (WC):3.5 - 10.5" (for NG), 8 - 13" (for LP)
Input (BTU):36,000 - 151,600
Max. Boiler Output Water Temperature:190°F
Max. DHW Flow @ 72°F Rise:4.0.
Max. Elevation:6,000 ft (3% per 1,000ft de-rating)
Max. Working Pressure:30 psi
Mounting Type:Wall-hung (wall-mounted)
Net IBR Rating (BTU):117,000
System Type:Hydronic (Hot Water)
Turndown (Modulation) Ratio:5 : 1
Water Volume (gallons):0.952
Weight (lbs):110.2
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