Friday, January 26, 2018

Venting for Bosch Greentherm C950ES/C1050ES Tankless Water Heaters

This is to explain the venting requirements for the Bosch Greentherm C950ES and Greentherm C1050ES tankless water heaters.  The Bosch Greentherm C950ES and C1050ES are direct vent units and can vent out the sidewall of the home or up through the roof.  The Greentherm units cannot be vented into an existing chimney unless there is nothing else venting into the chimney and that the vent pipe runs all the way up the chimney to a specified rain cap.

The Bosch Greentherm C950ES and C1050ES models can be vented with PVC, CPVC, PP and ABS.  The Greentherm units can be vented with 2", 3" or 4" diameter material. Below are the distances of the length of the exhaust runs.  Please refer to the installation manual for restrictions and clearances.



For further questions on venting and combustion air requirements please refer to the installation manual that comes with the unit or please call Global Pro Tankless Supply at 866-289-4652.


Thursday, December 7, 2017

Low Stock on Bosch 425HNO LP Outdoor Gas Tankless Water Heater

Global Pro Tankless Supply has just a limited supply of the Bosch 425HNO LP (Liquid Propane) outdoor tankless water heaters left in stock.  The Bosch 425HNO LP model uses a hydro ignition system to activate the burners and utilizes a modulating gas valve to ensure a constant temperature at varying flow rates. The 425HNO LP is designed to be installed outdoors and has a 120V plug that is only used for freeze protection (unit requires no electrical power to operate). The 425HNO LP is the perfect tankless solution for smaller families and households that only use no more than two hot water applications at a time.  The last Bosch 425HNO LP units left are for Liquid Propane (LP) so call soon while supplies last.
Please call Global Pro Tankless Supply at 866-289-4652 for further questions or to place an order.
Hurry while supplies last...


Thursday, November 9, 2017

Bosch FW200 Weather Compensating Control Compatibility

The Bosch FW200 Weather Compensating Control is "not" compatible with the CZM100 zone manager, CRC100 and CRC200 room controllers.  The CZM100 zone manager, CRC100 and CRC200 room controllers are BUS driven controllers and the FW200 is not.  All of the Bosch Greenstar gas-fired boilers come with the CRC200 Comfort room controller and the CRC200 has an indoor reset that adjusts the unit to the temperature inside the home and works very well.  The CRC100 and the CRC200 room controllers can both be used in conjunction with the CZM zone manager. 

The only time someone would want to use the Bosch FW200 Weather Compensating Control is if they only have 1 zone and do not want to use the CRC200 that comes with the boiler.  The FW200 has an outdoor reset for temperature control and the CRC200 room controller has an indoor reset.
For further questions please call Global Pro Tankless Supply at 866-289-4652


Tuesday, October 31, 2017

Recirculation Pumps for New Bosch Greentherm 9000 Series Gas Tankless Water Heaters

Global Pro Tankless Supply is now carrying the new Bosch Greentherm 9000 series gas tankless water heaters.  The New Greentherm 9000 series heaters have many new features.  Some of the new 9000 series heaters such as the 9900i SE 199, 9900 SE 199 and the 9900 SE 160 indoor models  come with a built in recirculation pump.  The built-in recirculation pump is good for homes up to 2,000 sq ft that minimizes water waste waiting for hot water at the faucet and saves about 11,000 gallons per household per year!  All of the other 9000 series units have a plug on the bottom of the unit for an external recirculation pump to be installed.  Please refer to the installation manual and consult with your installer on sizing the proper pump for the correct size home.
Global Pro Tankless Supply is now taking pre orders for a couple models that will be coming out in early 2018. Here are links to the 2 models coming out soon.


Link to:
Bosch Greentherm T 9800 SE 199

Bosch Greentherm T 9800 SE 160

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


Wednesday, September 13, 2017

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.

Tuesday, September 12, 2017

Bosch Greenstar Combi 100P boiler (ZWB28-3A)

Global Pro Tankless Supply is pleased to announce we are now carrying the new Bosch Greenstar Combi 100P boiler (ZWB28-3A).  This new combi boiler is identical to the Greenstar Combi 100 boiler (ZWB28-3) 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.  New Part number: 7738100825.  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.


Wednesday, August 16, 2017

Replacement Parts for Bosch Greentherm C950ES LP Tankless Water Heater

Global Pro Tankless Supply is now carrying most of the replacement parts for the Bosch Greentherm C950ES LP condensing gas tankless water heater. Global ProTankless Supply carries most of the parts for the Bosch C950ES LP but if there is something we do not carry we can just have it drop shipped right from Bosch to the customer.  Please see the list below for most of the parts we carry. Please remember that all Bosch replacement parts are non returnable.


  • Ignition Group - Part #87013022490
  • Control Unit - Part #87387083890
  • Primary Fan - Part #87072040710
  • Secondary Fan LP - Part #87072040740
  • Water Valve w/engine - Part #87085050230
  • Heat Exchanger LP- Part #87387040260
  • Main Burner LP- Part #87081206990
  • Condensing Heat Exchanger - Part #87057001630

If you do not see the part you are looking for please call us at 888-726-9752 and we can help you get the part you need.