7738100611 Bosch Greenstar Natural/LP Gas Combi Pro Wall Boiler 151 MBH

BOSZWB423A MFG #: 7738100611
  • Manufacturer Name: Bosch Thermotechnology
Note: Bosch thermotechnology would like to notify you of a change in the location of the LP conversion kits found inside the packaging for this boiler. For products manufactured after 8/12/2019, they are now located at the top of the box the boiler is packaged in. Please click here for the product announcement for details and other affected models.
  • Description
  • Documents
  • Specifications
  • Residential Combination Condensing Gas Boiler
  • Type Hot Water
  • Applicable Standard CSA (Canada and US), ASME H, AHRI
  • Supply Connection 1" Threaded
  • Return Connection 1" Threaded
  • Gas Type Natural/Propane
  • Gas Connection 3/4" Threaded
  • AGA Input Rating 36 to 151.6 MBH
  • DOE Heating Capacity 135 MBH
  • Net IBR Rating 117 MBH
  • AFUE Rating 95 Percent
  • Air Inlet Connection 2" or 3"
  • Boiler Dimensions 17-3/4" Length x 13-3/4" Width x 33-1/2" Height
  • Boiler Material Plated Stainless Steel/Magnesium-Aluminum-Silicon Alloy (Heat Exchanger)
  • Water Content 0.925 Gallon
  • Burner Type Low NOx Stainless Steel
  • Vent Size 2" or 3"
  • GPH Recovery 3.61 GPM at 140 Deg F (DHW)
  • Pressure Rating 30 PSI
  • Mounting Type Wall Mount
  • Warranty Lifetime Limited (Heat Exchanger), 5 Year Limited (Labor/Parts)
  • Options Floor Base, FW200 Weather Compensation Boiler Control, NSC Controls, CT100 Control, Venting and Gas Conversion Kit
  • Inclusions/Features Full Modulating Fan, Electrode Assembly, Primary Sensor, Limit Stat, Digital Display, Heatronic III Boiler Control
  • Boiler Type Water
  • Fuel Gas
  • With Domestic Hot Water Yes
  • Net IBR 117 MBH
  • AFUE 95%
  • Mount Wall
  • Heat Exchanger Material Plated Stainless Steel/Magnesium-Aluminum-Silicon Alloy
  • Voltage Rating 120 Volt AC at 60 Hertz
  • Sound Pressure Level 45 dB
Provides Heat and Up to 4 GPM Domestic Hot Water in One Compact, Lightweight Wall Mounted Unit;Single Zone Utilizes Boiler Pump, Multi-Zone Requires a Primary/Secondary Piping or Low Loss Header;Can be Installed Using a Variety of Venting Materials and Terminations;Limited Lifetime (Heat Exchanger), 5 Year Limited (Labor/Parts) Warranty;Energy Star Rated