Tuesday, July 25, 2017

Replacement Parts for Bosch Therm 830ES Gas Tankless Water Heater

GlobalTowne is now carrying most all of the replacement parts for the Bosch Therm 830ES gas tankless water heater.  The Bosch 830ES comes in Natural Gas (NG) or Liquid Propane (LP) and is a non-condensing heater.  GlobalTowne carries most of the parts for the Bosch 830ES 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
  • Freeze Prevention Kit - Part #7709003665
  • Control Unit - Part #87387083840
  • Primary Fan - Part #87072040710
  • Secondary Fan LP - Part #87072040720
  • Water Valve w/engine - Part #87085050230
  • Hydrolic Block - Part #87387046720
  • Main Burner - Part #87081206990
  • Exhaust Collar - Part #87055041620
  • Air Intake Collar - Part #87055041160
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.


Monday, June 5, 2017

Low Stock on Bosch Aquastar 125B NG (Natural Gas)

GlobalTowne is almost out of stock on the Bosch Aquastar 125B NG (Natural Gas) unit.  The Bosch 125B NG is a naturally drafting gas tankless water heater designed for 1 major application at a time up to 3.6 GPM.  The 125B NG has piezo ignition and features a standing pilot light and requires no electrical power. This unit is great for off grid applications.  The Bosch 125B NG vents vertically using a 5" B-vent galvanized pipe.

Please call GlobaTowne at 888-726-9752 for further questions or to place an order.

Tuesday, May 16, 2017

Low Stock on Bosch 1600H NG

GlobalTowne is almost out of stock on the Bosch 1600H NG (Natural Gas) unit.  The Bosch 1600H NG is a naturally drafting gas tankless water heater designed for 1 major application at a time up to 3.6 GPM.  The 1600H NG activates with a hydro ignition system and requires no electrical power. This unit is great for off grid applications.  The Bosch 1600H NG vents vertically using a 5" B-vent galvanized pipe.

Please call GlobaTowne at 888-726-9752 for further questions or to place an order.

Thursday, April 27, 2017

Low Stock on Aquastar 125BO NG Outdoor Tankless Water Heater

GlobalTowne has just a limited supply of the Bosch Aquastar 125BO NG outdoor tankless water heaters left in stock.  The Bosch AquaStar 125 BO model has a pilot light and offers a Piezo push-button ignition and utilizes a modulating gas valve to ensure a constant temperature at varying flow rates. The 125BO is designed to be installed outdoors and has a 120V plug that is only used for freeze protection. The 125 BO 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 Aquastar 125BO units left are for Natural Gas (NG) so call soon while supplies last.
Please call GlobalTowne at 888-726-9752 for further questions or to place an order.

Tuesday, March 21, 2017

Heat Sink Paste Application for Bosch Electric Tankless PCB Board Replacement

This will cover a little more in depth application of the heat sink paste that needs to be applied to the back of the triacs on the pcb board for the Bosch High KW electric tankless water heaters.  When you are replacing the PCB control board on a Bosch electric tankless water heater for the high KW units such as the AE-115/WH17 or the AE-125/WH27 you want to make sure to apply the heat sink paste that comes with the new PCB board.

The heat sink paste will come in a small syringe type applicator and a small amount will need to be applied to the back of each triac.  The triac's are the small black squares to the left of the PCB board labeled by the letter G in the picture below.  The Bosch AE-115/WH17 will have 4 small black triac's to the left of the PCB board and the AE-125/WH27 will have 6 small black triacs to the left of the PCB board.  There are service bulletins that show the PCB board replacement and heat sink application.  Bosch Service bulletin EP-22 will show the PCB board replacement for all the newer high KW units with polymer modules.    Bosch Service bulletin TWH-E2-22 will show the PCB board replacement for all the older high KW units with copper canisters.

For further questions or to purchase a new PCB control board visit this link:
or please call GlobalTowne at 888-726-9752 or visit our website.


Tuesday, February 28, 2017

Bosch AQ4 Powervent Kit Discontinued

The Bosch AQ4 Power Vent kit has been discontinued.  This powervent kit was designed and used for the Bosch models:  1600P, 1600H, 520PN and 520HN heaters.

GlobalTowne still has a couple of the Bosch AQ4 Powervent kits available while supplies last.

Bosch still has some parts in stock for the AQ4 power vent kit such as the Blower motor and other various parts. Stock for the individual parts for the AQ4 powervent kit will only be available for a limited time as supplies last. Please call us at 888-726-9752 for pricing and availability for individual parts.

The Bosch AQ4 powervent kit was designed to make the naturally drafting 1600 and 520 series heaters capable of sidewall venting.



Tuesday, January 31, 2017

Marey Gas Tankless Water Heaters for Camps and Cottages

GlobalTowne is now carrying the Marey gas tankless water heaters and these are great for camps and cottages as they require no power to operate.  The Marey gas tankless water heaters run on 2 D-cell batteries and require no electrical power.  There are 3 different models such as the Marey GA 16L, Marey GA 10L and the Marey GA 5L.   These units come in either Natural Gas (NG) or Liquid Propane (LP).
Click here for more information about the Marey Gas Tankless Water Heaters for off grid applications.