Monday, May 23, 2016

Special Reduced Pricing on the Bosch 450ESR NG (Natural Gas)

Global Portankless Supply is pleased to announce we have lowered the price on the Bosch 450ESR NG (Natural Gas) recirculating heater.  Please visit our website for more specifications and special pricing.  Please visit the downloads tab to view the specification sheet and installation manual.

The Bosch 450 ESR NG is not approved or designed for closed loop heating applications.  The ESR unit is not a tankless heater as they have no flow switch to respond to flow.  Instead it’s a recirculating water heater designed for tank loading applications.  When an AquaStat (not included) hooked up to a tank tells the ESR that water needs to be brought back up to temperature, the ESR will tell a circulator (not included) to turn on to create flow through the heater to reheat the water in the tank.   Please refer to the installation and applications manual.
The Bosch 450 ESR recirculating heater is a 120K BTU unit and can deliver 4.5 GPM at a 45 degree rise.  Efficiency is 81%

The temperature control range for both heaters can be set anywhere from 115°F (45°C) - 190°F (90°C)

The 450 ESR comes with a standard ¾” pressure relief valve.

Thursday, April 21, 2016

Determining the Correct Size Bosch Whole House Electric Tankless Water Heater

For determining the correct size Bosch electric tankless water heater for your home there are a lot of variables that need to be taken into consideration.  Bosch offers 3 whole house electric tankless water heaters.  The Bosch Tronic 6000C WH17, the Bosch Tronic 6000C WH27 and the Bosch Tronic 5000 WH36.  The WH17 is a 17 Kilo Watt (KW) unit, the Bosch WH27 is a 27 KW unit and the Bosch WH36 is a 36 KW unit.  Each of the Bosch whole house electric tankless provide a little more gallons per minute (gpm) from one to the other.  When sizing your home for the correct Bosch electric tankless water heater you first want to decide how many gpm at one given time will you use.  The next thing to take into consideration is your incoming water temperature.  All these factors will determine what size electric tankless will be good for your home.

Please see the diagram and chart below to determine which Bosch electric tankless will be good for your application.

Please feel free to call us at 866-289-4652 for further questions or to order a Bosch electric tankless water heater.  Also visit our website at  

Wednesday, March 2, 2016

Using Bosch Gas Tankless Water Heaters For Breweries & Distilleries

Did you know that it takes many gallons of hot water to make nice cold beer and this is why many breweries around the United States are starting to integrate gas tankless water heaters into their system. The Bosch gas tankless water heater keeps a more stable temperature and delivers endless gallons of hot water.

There are many different Bosch Gas tankless water heaters to choose from but the largest is the Bosch Therm C1210ESC commercial unit and comes in either Natural Gas (NG) or Liquid Propane Gas (LP).  The Bosch C1210ESC has a max temperature of 180 degrees and is great for brewing or cleaning the storage tanks.  The Bosch Greentherm C1050ES is also another great unit for a Brewery. The Bosch Greentherm C1050ES can reach temperatures up to 140 degrees F but after adding the high temperature kit the unit can also go up to 180 degrees F.  Depending on the size of the Brewery and the amount of hot water needed at one given time the Bosch gas tankless water heaters can be cascaded together to deliver more gallons per minute (gpm).  The Bosch Greentherm C1050ES can be cascaded with up to 24 units and deliver up to 290 GPM of hot water.

Depending on your needs for hot water and the amount used at one given time there are different applications such as tank loading as this may be more easy to use and store the hot water.

For your hot water brewing needs please call Global Pro Tankless Supply at 866-289-4652 to go over the many different Bosch gas tankless water heaters and the applications they can cover.

Thursday, February 4, 2016

Bosch Gas Tankless Water Heaters and Tank Loading Applications

Global Pro Tankless Supply is always trying to make it easier to figure out the right Bosch tankless water heater that is designed for the right application.  A tank load system, because of the added storage, can provide a high peak flow with fewer tankless units and lower installed cost. This will cover the basics for a tank loading application that will enable the user to have more domestic hot water and can also be set up for heating applications.  The Bosch gas tankless models such as the C1210ESC/C1210ES/C1050ES/C950ES/940ES and 830ES are all capable and designed to work with a tank loading applications.  Tank loading can be done using a standard tank heater as a storage tank or an indirect tank such as the Bosch SST Indirect Storage Tanks.

Many of the tank loading applications range from small singular tank loading to commercial tank loading such as for hotels and Inns.  Please see the diagram below for a basic design of a tank loading application.

For all the different tank loading applications please review the Bosch Applications Manual or call Global Pro Tankless Supply at 866-289-4652.

Monday, January 18, 2016

Bosch Greenstar CRC200 Comfort Room Control

The CRC200 Comfort Room Control 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.

The user interface is used to control a heating zone and a DHW tank charging circuit for water heating directly at the heat source. The user interface displays information about the heat source and heating system and is used to change the settings.
A maximum of 8 heating zones is permitted when connected to several CZM100 Comfort Zone Managers. Water heating may be controlled with or without time program. Installation options: On the wall with a BUS connection to a heat source or CZM100 module with an EMS-BUS Interface (Energy Management System). The part number for the Bosch Greenstar CRC200 Comfort Room Control is (7738111034).

Bosch Greenstar CRC100 Comfort Room Control

The CRC100 Comfort Room Control can be used for a heating system with one heating zone. This method of operation is used when the CRC100 is connected directly to the heat source. This will modulate the percentage of power output the heat source is supplying. The CRC100 can be used for one heating zone with a CZM100. A maximum of 8 heating zones is permitted when connected to several CZM100 Comfort Zone Managers. The CRC100 can be used as a controller for heat sources with an external indirect tank and circulator pump, but the DHW maximum temperature and priority settings are made at the heat source.
The part number for the Bosch Greenstar CRC100 Comfort Room Control is (7738110090).

Wednesday, December 16, 2015

Serial Number Cutoff for Logic PCB for Bosch Tronic 6000C WH17 & WH27

Bosch Thermotechnology is always upgrading the Bosch tankless water heaters and has recently updated the Bosch Tronic WH17 & WH27.  The new model numbers for these heaters are:

Bosch Tronic 6000C WH17 - Model #45-551721

Bosch Tronic 6000C WH27 - Model #45-557721

There have been several upgrades to the units and one of theses changes is to the Logic Printed Circuit Board (PCB).  The new Logic PCB for the Bosch Tronic 6000C WH17 & WH27 has a different part number from the older units.  Below is the new part numbers and also the serial number cutoff for the PCB boards.

Serial Number Cutoff:

Logic PCB #8-738-710-921, this would be for any new 6000C WH17 with serial number 555 A 800001 or higher

Logic PCB #8-738-710-922, this would be for any new 6000C WH27 with serial number 555 A 800271 or higher