Bosch Greenstar Combi 151P Boiler (ZWB42-3A)

Global Pro Tankless Supply is pleased to announce we are now carrying the new Bosch Greenstar Combi 151P boiler (ZWB42-3A).  This new combi boiler is identical to the Greenstar Combi 151 boiler (ZWB42-3) except with the CRC200 thermostat, DHW tank sensor, supply sensor, expansion tank and twin pipe vent adapter removed.  These combi boilers provide both space heating and domestic hot water, while maintaining AFUE efficiencies of 95.0%.

All Greenstar Combi boilers are equipped with a high-strength stainless steel secondary exchanger and burner with double passage - ensuring consistent temperature output based on demand. The DHW hot water temperature control limit of 140°F helps prevent scale build-up within the heat exchanger.

Other features with this new boiler include a new electrical connection with a pre-wired 120V main power cable and plug. A new LP conversion kit which is easier to field convert the boiler.  All Bosch Greenstar boilers come with a Lifetime Limited warranty on the heat exchanger and a 5 year warranty on parts and labor.

Please call Global Pro Tankless Supply at 866-289-4652 for further questions or to place an order.

Location of Serial Number on Bosch Greenstar Gas-Fired Boilers

The information below is to familiarize people with the location of the serial number on their Bosch Gas-Fired Greenstar Boiler.  The serial number will be needed for registering the unit with Bosch so that the customer gets a full warranty.  The serial number is located in 2 places on the Greenstar boiler itself.  Please see the images below for location of the serial number.

Please call Global Protankless Supply at 866-289-4652 for further questions about the Bosch Greenstar boilers

Model Numbers Pertaining to the Bosch Greenstar Combi and Straight Boilers

Below is a table describing the model numbers that pertain to the Bosch Greenstar gas-fired wall-hung boilers and combination boilers.

Z - Central heating appliance
W - DHW heating
B - Condensing technology
R - Constant temperature control
16 - Output up to 54,600 BTU/hr (16 kW)
21 - Output and DHW output up to 71,600 BTU/hr (21 kW)
28 - Output and DHW output up to 95,500 BTU/hr (28 kW)
35 - Output and DHW output up to 119,400 BTU/hr (35 kW)
42 - Output and DHW output up to 143,300 BTU/hr (42 kW)
-3 - Version
A - Fan-supported appliance
23 - Natural gas (NG) conversion to Liquid Propane (LP) comes with boiler

So if you wanted to reference model number "ZWB42-3" this would be the model number for the Bosch Combi 151 Gas-Fired Wall-Hung Boiler for space heating and domestic hot water (DHW).
Z - Central heating appliance
W - DHW heating
B - Condensing technology
42 - Output and DHW output up to 143,300 BTU/hr (42 kW)
-3 - Version

All Greenstar boilers and Combi units are fan assisted "A" and they all come preset for Natural Gas NG "23" but also come with the conversion kit for Liquid Propane LP.

Conversion:
Model #               Description
ZBR16-3             Bosch Greenstar Wall-Hung 57 Boiler
ZBR21-3             Bosch Greenstar Wall-Hung 79 Boiler
ZBR28-3             Bosch Greenstar Wall-Hung 100 Boiler
ZBR35-3             Bosch Greenstar Wall-Hung 131 Boiler
ZBR42-3             Bosch Greenstar Wall-Hung 151 Boiler
ZWB28-3            Bosch Greenstar Wall-Hung Combi 100 Boiler
ZWB35-3            Bosch Greenstar Wall-Hung Combi 131 Boiler
ZWB42-3            Bosch Greenstar Wall-Hung Combi 151 Boiler

New Bosch Greenstar 79 Gas-Fired Wall-Hung Condensing Boiler

Bosch has just introduced a new Greenstar 79 Gas-Fired Wall-Hung Condensing Boiler and it is very efficient and simple to set and operate.  Space heating boiler for connection to a hot water tank with unsurpassed performance and control. With special insulation to ensure ultra quiet operation and the exclusive keypad safety lock feature to prevent unwanted tampering with heating controls, this unit is the ideal "green" upgrade for detached & terraced houses and is also suitable for apartments.

The Greenstar 79 is simple to operate and some of the specifications include:

79,000 BTU 

AFUE rating of 95%

1" main heating connections

Can be vented with 2" or 3" PVC

3" PVC concentric vent kit available for vertical or horizontal installation

Telescopic Concentric Up and out vent kit available for horizontal installation 

The energy-savings and environmental features are:

Aluminum-Silicon heat exchanger delivers high efficiency with low temperature applications

Low NOx emissions ahead of 2012 SCAQMD regulations

Simple, intelligent control options optimize efficiency and fuel consumption

Low electrical consumption when the boiler is in standby mode

Electronic ignition

Anti-cycle and modulation control

This Greenstar 79 condensing space heating boiler can be used for either Natural Gas or Liquid Propane installations.   The heater comes preset for Natural Gas (NG), but can be converted to Liquid Propane (LP).  A gas conversion kit is included.

The Greenstar boiler comes with a temperature control FW 200 that can either be mounted to the heater or mounted to the wall beside the heater.  This module allows the heater to be set for different temperatures, zones and the time of day the heater comes on and goes off.  The FW 200 control also comes with a temperature probe that goes to the outside and detects and monitors the outside temperature and then allows the heater to remember the coldest and warmest times of the day and year.

The Greenstar condensing space heating boiler is specifically designed for space heating only but can also be used for Domestic Hot Water (DHW) when it is piped to an indirect tank and using a pump, aquastat and check valves.

New Bosch Greenstar Combi 131 Gas Fired Wall Hung Boiler

Bosch has just introduced a new Greenstar Combi 131 Gas-Fired Wall-Hung Condensing Boiler for space heating and DHW.  "Combi" (combination) unit with space heating and integrated water heating in one highly efficient, compact unit. With special insulation to ensure ultra quiet operation and the exclusive keypad safety lock feature to prevent unwanted tampering with heating controls, this unit is the ideal "green" upgrade for detached & terraced houses and is also suitable for apartments.

The Greenstar Combi 131 is simple to operate and some of the specifications include:

131.9K BTU 

AFUE rating of 95%

Delivers 3.2 GPM at 72 degree rise

3/4" Water connections

1" main heating connections

Can be vented with 2" or 3" PVC

3" PVC concentric vent kit available for vertical or horizontal installation

Telescopic Concentric Up and out vent kit available for horizontal installation 

The energy-savings and environmental features are:

Aluminum-Silicon heat exchanger delivers high efficiency with low temperature applications

Low NOx emissions ahead of 2012 SCAQMD regulations

Simple, intelligent control options optimize efficiency and fuel consumption

Low electrical consumption when the boiler is in standby mode

Electronic ignition

Anti-cycle and modulation control

These Greenstar Combi 131 condensing space heating boiler can be used for either Natural Gas or Liquid Propane installations.   The Greenstar units come preset for Natural Gas (NG), but can be converted to Liquid Propane (LP).  A gas conversion kit is included.

The Greenstar Combi units come with a temperature control FW 200 that can either be mounted to the heater or mounted to the wall beside the heater.  This module allows the heater to be set for different temperatures, zones and the time of day the heater comes on and goes off.  The FW 200 control also comes with a temperature probe that goes to the outside and detects and monitors the outside temperature and then allows the heater to remember the coldest and warmest times of the day and year.

All Greenstar Combi boilers are equipped with a high-strength stainless steel secondary exchanger and burner with double passage - ensuring consistent temperature output based on demand. The DHW hot water temperature control limit of 140°F helps prevent scale build-up within the heat exchanger.

Bosch Greenstar Gas-Fired Condensing Boilers

Bosch has a new line of Greenstar Gas-Fired Wall-Hung Condensing Boilers and they are all very efficient and simple to set and operate.  Space heating boiler for connection to a hot water tank with unsurpassed performance and control. With special insulation to ensure ultra quiet operation and the exclusive keypad safety lock feature to prevent unwanted tampering with heating controls, this unit is the ideal "green" upgrade for detached & terraced houses and is also suitable for apartments.

There are 5 different model Greenstar Boilers designed for space heating only and they are sized by thier BTU capacity. 

• Bosch Greenstar 57, (57.2K BTU), 98.7% efficiency
• Bosch Greenstar 79, (79.2K BTU), 98.7% efficiency
• Bosch Greenstar 100, (100.8K BTU), 98.5% efficiency
• Bosch Greenstar 131, (131.9K BTU), 97.5% efficiency
• Bosch Greenstar 151, (151.6K BTU), 96.8% efficiency

The energy-savings and environmental features are:

Aluminum-Silicon heat exchanger delivers high efficiency with low temperature applications

Low NOx emissions ahead of 2012 SCAQMD regulations

Simple, intelligent control options optimize efficiency and fuel consumption

Low electrical consumption when the boiler is in standby mode

Electronic ignition

Anti-cycle and modulation control

These Greenstar condensing space heating boilers can be used for either Natural Gas or Liquid Propane installations.   The heaters come preset for Natural Gas (NG), but can be converted to Liquid Propane (LP).  A gas conversion kit is included.

The Greenstar boilers come with a temperature control FW 200 that can either be mounted to the heater or mounted to the wall beside the heater.  This module allows the heater to be set for different temperatures, zones and the time of day the heater comes on and goes off.  The FW 200 control also comes with a temperature probe that goes to the outside and detects and monitors the outside temperature and then allows the heater to remember the coldest and warmest times of the day and year.

The Greenstar condensing space heating boilers are specifically designed for space heating only but can also be used for Domestic Hot Water (DHW) when they are piped to an indirect tank and using a pump, aquastat and check valves.

Greenstar Combi 100 & 151 Gas Fired Condensing Boilers

The New Bosch Greenstar Combi 100 (100K BTU) & Bosch Greenstar Combi 151 (151K BTU) Gas Fired Condensing Boilers are new to the American market but have been in use for years in Europe.  The combi 100 is 98.5% efficient as the combi 151 is 96.5% efficient.  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.

"Combi" (combination) unit with space heating and integrated water heating in one highly efficient, compact unit. With special insulation to ensure ultra quiet operation and the exclusive keypad safety lock feature to prevent unwanted tampering with heating controls, this unit is the ideal "green" unit.

Limited lifetime heat exchanger and 5-year parts & labor warranty

All models available as NG or LP

Special insulation ensures ultra-quiet operation

Compact dimensions and built-in frost protection offer flexibility for location of installation

ECO mode for energy saving fuel consumption

Exclusive safety feature - keypad safety lock prevents unwanted tampering with heating controls.

Each unit features an ASME approved Al-Si heat exchanger constructed of advanced Magnesium-Aluminum-Silicon alloy - offering increased flexibility versus traditional stainless steel. They are equipped with highly durable heating blocks that are corrosion resistant and designed to optimize clean burning combustion over an extra large surface area, which requires minimal servicing and reliance on spare parts during the boiler’s lifetime.  The Greenstar units come set for Natural Gas (NG) and there is a conversion kit that is included with the unit if it has to be converted to Liquid Propane (LP).

The Greenstar Combi units are designed for heating such as radiant floor heat or baseboard heating with multiple zones depending on the size of the unit and also for domestic hot water (DHW).  

The combi 100 unit besides being used for heating applications is also designed for DHW for 1 major application at a time - 72 degree rise at 2.4 gpm while the combi 151 could possibly do 2 applications at a time and will deliver - 72 degree rise at 4 gpm.

Depending on the size of your home and the heating and DHW applications you are looking for, you would need to get an HVAC or gas technician to size the unit properly as they would have to factor in,  size of home, insulation "R" factor, windows, etc..