Greenstar 151 Condensing Gas Combi Boiler, 117,000 BTU

Greenstar 151 Condensing Gas Combi Boiler, 117,000 BTU

Greenstar 151 Condensing Gas Combi Boiler, 117,000 BTU QR Code
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Brand: Bosch

Product Code: ZWB42-3

Availability: In Stock

Weight:0.10 lb



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$3,084.95
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Bosch Greenstar series, 151-ZWB42-3 model, wall-mounted combi gas condensing boiler (heat + tankless DHW) with 117,000 kBTU (Net) rating. Energy Star rated. Built-in heat pump, exchanger and expansion tank. Includes LPG conversion kit, 3" twin pipe adapter and outdoor reset control.


Technical Specifications:

  • Input (BTU): 36,000 - 151,600;
  • DOE Rating (BTU): 135,000;
  • Net IBR Rating (BTU): 117,000;
  • 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: 0.9 Gal/hr (@ 86°F);
  • Max. Working Pressure: 30 psi;
  • Max. Boiler Output Water Temperature: 190°F;
  • Domestic Water Connections: 3/4" NPT;
  • 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 (3% per 1,000ft de-rating);
  • Mounting Type: Wall-hung (wall-mounted);
  • Dimensions (Depth x Width x Height): 13.9" x 17.4" x 33.5";
  • Weight (lbs): 110.2;
  • Water Volume (gallons): 0.952;
  • Max. DHW Flow @ 72°F Rise: 4.0.
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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