Bosch Greenstar Wall-Hung Combi 131 NG/LP

Product Overview

Bosch Greenstar Gas-Fired Wall-Hung Combi 131

131,900 BTU combination boiler for Space Heating and Domestic Hot Water. Electronic ignition. Works with Natural Gas or Propane

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Bosch Greenstar Combi 131 (Natural Gas/Propane) Residential Gas-Fired Wall-Hung Condensing Boiler for Space Heating and Domestic Hot Water (DHW)

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Save 10% (up to $300) with the 2011 Federal Tax Credit for qualified Gas Tankless Water Heaters.

Bosch Greenstar Wall-Hung Combi 131

The Bosch Greenstar Combi 131 Gas-Fired Wall-Hung Condensing Boiler provides Space Heating and handles Domestic Hot Water (DHW) with up to 98.7% efficiency and 36 to 131.9 MBH inputs! The new Bosch Greenstar condensing boiler line is engineered to offer the ideal solution for residential heating and hot water needs at an affordable price, without compromising quality or fuel economy.

Bosch's Greenstar condensing boiler series use a combustion process which achieves up to 98.7% efficiency and reduces NOx emissions ahead of 2012 SCAQMD (14ng/j) regulations, providing greater energy savings while contributing to cleaner air and better quality of life.

Greenstar boilers are certified ENERGY STAR products, and with the AFUE rating of 95% they are eligible for the $150 Federal Tax credit for natural gas, propane, or oil furnace or hot water boiler. These boilers are also eligible for many state, local and utility rebates, such as Gas Networks in Massachusetts and Philadelphia Gas Works. Visit the DSIRE web site to find rebates in your area.

This combination boiler can be used for either Natural Gas or Liquid Propane installations and a gas conversion kit is included. View this combination boiler in the Air-Conditioning, Heating and Refrigeration Institute (AHRI) directory with Certified Reference Number 6603447.

The Bosch Greenstar series features industry-leading design & technology components built for years of reliable operation & optimal energy efficiency.

Al-Si Heat Exchanger
Each unit features an ASME approved Al-Si heat exchanger constructed of advanced magnesium-aluminum-silicon alloy offering increased flexibility versus traditional stainless steel. This highly durable heating block is corrosion resistant and designed to optimize clean burning combustion over an extra large surface area. The heat exchanger has a coating that prevents scale build-up, reduces service, maintains high efficiency and extends the life of the boiler.

Plated Stainless Steel Heat Exchanger
All Greenstar Combi boilers are equipped with a high-strength stainless steel flat plate heat exchanger with double passage ensuring consistent DHW temperature output based on demand. This heat exchanger, with its large surface area and advanced technology, allows the boiler to use a lower water temperature and to condense even while producing DHW for greater efficiency and helps reduce the build-up of scale within the heat exchanger.

Full Modulating Fan Assembly
A full modulating fan automatically increases or decreases its speed depending on the heat demand controlling the amount of gas coming into the boiler. This process, called modulation, prevents the boiler from either having too little or too much air in the unit for optimal combustion ensuring high efficiency.

Heatronic III Boiler Control
Bosch Heatronic III, a device integrated into the boiler, provides instant access to the hot water and heating control buttons. Furthermore it enables the easy setting and testing of many customized appliance functions and applications. The exclusive keypad safety lock feature prevents unwanted tampering with the control.

CRC200 Comfort Room Control
The CRC200 acts as the nerve center of a home's heating system. The CRC200 is a programmable controller with an integrated temperature sensor and can be used as a boiler control or in conjunction with the CZM100 Comfort Zone Manager as a room controller. It comes with back light and features a time program for heating and indirect hot water tank. Effective August 23, 2021 the Bosch Greenstar CRC200 Comfort Room Control (7738111034) is NO LONGER included with the Bosch Greenstar Wall-hung boilers.

FW200 Weather Compensation Boiler Control
The FW200 digital thermostat and outdoor reset boiler control can handle one zone and is programmable for up to six switching times throughout the day. The FW200 can be installed within the appliance or be wall mounted in any location throughout the home. Providing instant feedback to the end-user along with the built-in diagnostic effortlessly pinpoints operational issues. The Bosch Greenstar FW200 Weather Compensation Boiler Control (87182262150) is an optional accessory for both the Greenstar Wall-hung and Floor-standing boilers. Please note that the FW200 Weather Compensation Boiler Controller is not compatible with the CZM100 Zone Manager, CRC100 and CRC200 Room Controllers.

3-Speed Grundfos Integrated Pump
All Bosch Greenstar Floor-Standing (FS) Boilers include the 3-Speed Grundfos Integrated Pump.

Part Number 7738100256, Description ZWB35-3.

Brand	Bosch Greenstar
Model	Bosch Greenstar Gas-Fired Wall-Hung Combi 131
Manufacturer's Part Number (MPN)	7738100256
Alternate MPNs	7-738-100-256, ZWB35-3A23S3123, ZWB35-3, ZWB-35-3
Heater Style	Wall-Hung Combi Boiler
AHRI Reference Number	6603447
Integrated Expansion Vessel (Gallons)	3.17
Gas Connection (Inches)	3/4 NPT
Water Connections (Inches)	1 Main and 3/4 Domestic
Water Volume (Gallons)	0.952
Product Dimensions (H" x W" x D")	33.5 x 17.4 x 13.9
Product Weight (Lbs)	100.2
Shipping Weight (Lbs)	125.0000
Condensing Unit	Yes
Altitude Test (Ft)	No De-Rating up to 6000'
Maximum Input (MBH)	131900
Minimum Input (MBH)	36000
DOE Heating Capacity (MBH)	116700
Annual Fuel Utilization Efficiency (%)	95
Low Temp Application Efficiencies (%)	96.8
Venting Options	PVC, CPVC
Venting Diameter (Inches)	2 or 3
Gas Type	N/A
Energy Factor	N/A
BTU Rating	131900
Application	Residential
Indoor/Outdoor Installation	Indoor
Pipe Size	N/A
Product Type	Combi Boiler
Warranty	Lifetime warranty on the heat exchanger. Limited 5 year parts and labor warranty

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Warranty
Bosch gas tankless water heaters, electric tankless water heaters, electric mini-tank water heaters and accessories are warranted directly by the Manufacturer (BOSCH) through Bosch Thermotechnology Corp.

Please visit the Bosch-Climate.us web site Warranty Page for the full details of the Bosch product warranty.

Be sure to fill out your Warranty Card and send it to Bosch immediately after your installation to ensure you are registered for the full product warranty.
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