Wednesday, July 2, 2014

Bosch Greentherm C1050ES & C950ES Venting Limitations

The Bosch Greentherm C1050ES and the Bosch Greentherm C950ES gas tankless water heaters have minimum and maximum venting lengths for the exhaust and intake air.  Please review the specifications below for the two heaters and the size, material and lengths that can be used.

Vent options
The Greentherm C1050ES & C950ES must comply with the following material for exhaust and intake air.

PP common vent
PP twin pipe
PVC schedule 40 ANSI/ASTM D1785
CPVC schedule 40 ANSI/ASTM F441
ABS-DWV schedule ANSI/ASTM D2661

The Greentherm C1050ES & C950ES have many different ways they can vent such as horizontal or vertical and can use different types of material for venting and intake air.  There is the Polypropylene up and out concentric vent kit, Polypropylene common vent system if you are cascading more than one unit and up to 4 units, PVC Concentric vent kit, you can do a twin pipe PVC vent, etc.

Maximum vent lengths for exhaust, intake air and use of elbows  for the Greentherm C1050ES & C950ES are listed below:

Thursday, June 26, 2014

Global Pro Tankless Supply 4th of July Sale

Global Pro Tankless Supply is pleased to announce our 4th of July Sale that will be running from June 26th through July 11th 2014 at midnight ET. Everything will be marked way down for this special sale period.  Global Pro Tankless Supply will meet or beat any other authorized distributor's price as part of this promotion.  Global Pro Tankless Supply would need to verify the competitors discounted price either in e-mail or through a website.

Global Pro Tankless Supply will be knocking prices down on all our Bosch Gas tankless water heaters, electric tankless water heaters, Bosch Greenstar Boilers and Combi Boilers. No coupons are necessary as our prices have already been reduced on our web site at

We also have special July 4th sale pricing on our Humphrey gas lights & accessories, Danfoss electric in-floor heating mats, Z-Vent Stainless Steel Venting and Virgo water filtration systems.

Please feel free to e-mail us with questions at  or call us at 866-289-4652. We are open 24x7 to assist you in selecting the best product for your needs.


Tuesday, June 10, 2014

Bosch Tankless Water Heater Warranty

Bosch Thermotechnology provides the warranty for all of its Bosch tankless water heaters, including gas, propane and electric tankless water heaters in addition to the electric mini-tank water heaters.

You can find the full details of these Bosch product warranties at:

At this link you will also find the Bosch warranties for their Geothermal Heat Pumps, Bosch Greenstar Boilers, Stainless Steel Storage Tanks, and Solar products.

The warranty is always provided by the manufacturer, so you can contact Bosch directly with any warranty questions. Bosch also provides the warranty for all of its replacement parts.

Call us at 866.289.4652 if your Bosch water heater, boiler, storage tank or replacement part are out of warranty and in need of replacement. We offer Next Day Air, Second Day Air, and Ground shipping options for all of our Bosch products.

Monday, June 9, 2014

Replacing an Aquastar 240FX with Bosch Therm 830ES

The Aquastar model 240FX was a unit that was distributed by Controlled Energy Corporation (CEC) many years ago.  The 240FX was manufactured by Takagi and was capable of 2 major applications at one time. The Aquastar 240FX was a 165K BTU unit, took 4" single wall sealed galvanized or 4" single wall stainless steel venting.  The 240FX took it's combustion air from the area where it was installed.  The 240FX could sit right on the ground as the water and gas connections came out the left side of the unit.  Wall mounting was also an option.  The 240FX was suppose to be vented out the sidewall of the home for a maximum of 15' using the FXHood as the termination.  The Aquastar 240FX has been obsolete for some time and now most of the parts are no longer made also.

The closest replacement for the Aquastar 240FX is now the Bosch Therm 830ES.  The Bosch 830ES is a 175K BTU unit and is good for 2 major applications at one time.  The 3/4" water and gas connection are on the bottom of the unit vs the left side of the Aquastar 240FX.  The venting on the 830ES must be either 3" or 4" stainless steel single wall venting (AL29-4C) venting up through the roof or out the sidewall.  There is a vertical vent kit, ES VVT vertical vent kit avalable and also a sidewall vent kit, AQ3ES sidewall vent kit for venting out the side of the home.  The intake air for the 830ES is taken from the outside also using 3" PVC and should be taken from the same wall or roof the exhaust is going out through.  Please refer to the link above for more information on the Bosch Therm 830ES or call us at 866-289-4652 with questions.

Tuesday, May 20, 2014

Freeze Prevention Kit for Bosch Therm 520PN & 520HN Models

The Bosch Freeze Prevention Kit, part number 7709003775 is sold as an accessory and is approved for the Bosch Therm 520PN & 520HN heaters.  The Freeze Prevention Kit is designed to provide protection for the water heater down to approximately 5 degrees F for short term conditions only.  It will not protect the appliance in areas where the temperature is routinely expected to be below freezing.

The Freeze Prevention Kit will not protect plumbing outside the appliance from freezing.  Precautions should be taken to prevent this.

For more information and to order the Bosch Freeze prevention kit please call us at 866-289-4652.

Friday, April 4, 2014

Bosch Therm Intelligent Cascading Kit

The Bosch Therm Intelligent Cascading Kit part number 7709003962 connects the Bosch Therm tankless water heaters together in an intelligent cascading setup.  Up to 24 Bosch Therm tankless water heaters can be connected together in intelligent cascading to deliver more GPM for each heater cascaded.

The Bosch Therm Intelligent Cascading Kit is designed to work with the following Bosch tankless water heaters:  C1210ESC, C1210ES, C1050ES, C950ES, 940ES, 940ESO, 830ES.

Please refer to the installation manual for proper installation of the Bosch Therm Intelligent Cascading Kit.

Tuesday, March 18, 2014

Thermostat's for the New Bosch Tronic 3000T ES2.5 & ES4

The new Bosch Tronic 3000T ES2.5 & ES4 thermostat features a new sensing probe that is attached to the thermostat and inserts into the cavity of the new heating element so the heater can adjust temperatures quicker and maintain a more consistent heat.  The thermostat has an adjustment knob accessible from the outside of the unit on the front cover.  The temperature adjustment knob for the older models was located under the oval cover on the front of the unit.

The part number for the thermostat is 7738002302 and will work for the wholesale model ES2.5 & ES4 mini tank water heaters.  This thermostat will also work for the retail model Ariston GL2.5S & GL4S as well as the older Ariston Pro Ti GL2.5TiS and Ariston Pro Ti GL4TiS mini-tank electric water heaters.

The new thermostat will NOT work for any of the older Ariston GL2.5/GL4/GL2.5Ti or the GL4Ti electric mini-tank water heaters.