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...

Bosch FW200 Weather Compensating Control Compatibility

The Bosch FW200 Weather Compensating Control is "not" compatible with the Bosch CZM100  zone manager, Bosch CRC100 and CRC200 room controllers.  The Bosch 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 Bosch 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 Bosch CRC200 that comes with the boiler.  The Bosch FW200 "will" work in conjunction with other zone managers manufactured by any other brand except for Bosch.  Some of the zone managers that will work with the FW200 are companies like Taco, Grundfaus, etc. 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

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.

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.

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.

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 866-289-4652 and we can help you get the part you need.

Replacement Parts for Bosch C800ES Gas Tankless Water Heater

Global Pro Tankless Supply is now carrying most of the replacement parts for the Bosch C800ES condensing gas tankless water heater.  The Bosch C800ES comes in Natural Gas (NG) or Liquid Propane (LP) and is a condensing heater.  Global ProTankless Supply carries most of the parts for the Bosch C800ES 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 #87072072570
• Primary Fan - Part #87072040710
• Secondary Fan LP - Part #87072040740
• Water Valve w/engine - Part #87085050240
• Heat Exchanger - Part #87054063690
• Main Burner NG- Part #87081206420
• Mounting Bracket - Part #87013091640
• Condensing Heat Exchanger - Part #87057001610

If you do not see the part you are looking for please call us at 866-289-4652 and we can help you get the part you need.

We also carry the Bosch Greentherm C1050ES and is the direct replacement for the older C800ES.

Bosch Greenstar Boiler LP Conversion Kit and Process Has Changed

Global Pro Tankless Supply would like to inform you that the LP conversion kit and conversion process has changed on all Bosch Greenstar boilers, including Greenstar Floor, Wall, Combi and Straight-heat boilers. This change was made to simplify the LP conversion process and to reduce the chances of poor combustion levels in the boilers.

This new kit includes a fixed orifice, which does not require the setting of the gas-air ratio. A combustion analyzer is still recommended to ensure that proper CO2 and CO levels are achieved during installation. Additional information can be found in the Greenstar Gas Type Conversion Instructions (Document # 6720869700).  The new LP conversion kit utilizes the existing NG and LP code plugs and is completely backwards compatible with all previously sold Greenstar boilers.

LP conversion kit part numbers remains the same, because the product is 100% backwards compatible.

The existing stock of the old LP conversion kitswill be re-worked to include the new fixed orifice.

Please call Global Pro Tankless Supply at 866-289-4652 with further questions.

Z-Flex Z-Vent 3" to 24" Diameter Single-Wall Stainless Steel Venting

Global Pro Tankless Supply is now carrying the full line of Z-Flex Z-Vent single-wall stainless steel venting from diameters of 3" up to 24". The Z-Vent single-wall stainless steel venting is AL29-4C and is rated for Category I, II, III and IV appliances. The single wall venting has a tapered end on one side and a seal with a built in clamp on the other. The tapered end can be cut to fit. The stainless steel venting will last a life time and will not corrode or rust. Please see the individual links below for all the Z-Flex Z-Vent 3" up to 24" venting items.

3" Z-Flex Z-Vent Single-wall stainless steel venting
4" Z-Flex Z-Vent Single-wall stainless steel venting
5" Z-Flex Z-Vent Single-wall stainless steel venting
6" Z-Flex Z-Vent Single-wall stainless steel venting
7" Z-Flex Z-Vent Single-wall stainless steel venting
8" Z-Flex Z-Vent Single-wall stainless steel venting
9" Z-Flex Z-Vent Single-wall stainless steel venting
10" Z-Flex Z-Vent Single-wall stainless steel venting
12" Z-Flex Z-Vent Single-wall stainless steel venting
14" Z-Flex Z-Vent Single-wall stainless steel venting
16" Z-Flex Z-Vent Single-wall stainless steel venting
18" Z-Flex Z-Vent Single-wall stainless steel venting
20" Z-Flex Z-Vent Single-wall stainless steel venting
22" Z-Flex Z-Vent Single-wall stainless steel venting
24" Z-Flex Z-Vent Single-wall stainless steel venting

Please call Global Pro Tankless Supply at 866-289-4652 for furthers questions.

Cozy Heating Systems Space Heaters and Furnaces

Global Pro Tankless Supply is pleased to announce that we are now stocking Cozy Heating Systems line of space heaters, wall furnaces and floor furnaces. Cozy is a leading supplier of gas heating equipment known for their commitment to product excellence. Designed to withstand the test of time, Cozy heaters are engineered for long-term comfort and dependability. GPTS is here to introduce the following heaters and furnaces, now available for purchase through our website: Cozy Gravity Wall Furnaces, Cozy Vented Console Heaters, Cozy Direct Vent Wall Furnaces, Cozy Conventional Vent Counterflow Wall Furnaces, Cozy Direct-Vent Counterflow Wall Furnaces, Cozy Challenger Floor Furnaces, and Cozy Hi-Efficient Direct Vent Wall Furnaces. 

The Cozy Gravity Wall Furnaces include the natural gas models W255G, W355G, and W505G, and the liquid propane models W256G, W356G, and the W506G. Cozy Gravity Wall Furnaces mount on any inside or outside wall (single wall only), providing both circulated and radiant heat in an economical package. Available in single or dual wall models, each fits between any standard 16” center stud space. Available in 25,000, 35,000 and 50,000 BTU’s, Cozy Gravity Wall Furnaces provide ample heating for new constructions, additions, and other hard to heat areas.

The Cozy Vented Console Heaters include the natural gas models VC201 B/C, VC351 B/C, and the VC501 B/C (conversion kits are available for liquid propane use). Cozy’s Vented Console Heaters incorporate quality, efficiency and contemporary styling at an affordable price! Choosing the closed front console for pure circulated warmth at an even more economical price! The textured steel casing is coated with a baked black enamel painted finish that resists scratching and fading.

Each unit comes equipped with a 100% low-BTU safety pilot and top-operated temperature control with a pressure regulator for either natural or propane gas. Total safety is assured by a resettable vent spill safety device which cycles the unit off in the event of flue blockage or incorrect venting installation. An optional blower eliminates air stratification and distributes warm air throughout the room. These units require a BW vent (not included) to complete installation.

The Cozy Direct Vent Wall Furnaces include the natural gas models CDV155C, CDV255C, and CDV335C, and the liquid propane models CDV156C, CDV256C, and CDV336C. Cozy’s Direct-Vent Wall Furnace mounts on an outside wall and occupies minimal room space. The continuous seam-welded combustion chamber draws air from the outside and exhausts through a concentric vent system, which keeps the interior air warm and fresh. The louvered cabinet design maximizes airflow, providing uniform temperatures from floor to ceiling. A telescoping vent assembly is included and fits a standard 5”- 9” wall thickness, eliminating the need for expensive and difficult-to-install vent pipe systems.

The Cozy Conventional Vent Counterflow Wall Furnaces include the natural gas models CF403D and CF553D (conversion kits are available for liquid propane use). Cozy Top-Vent Counterflow Wall Furnaces can be mounted on any inside or outside wall, allowing maximum installation flexibility. The powerful, thermostatically controlled blower draws cool air into the upper grill and delivers warm air at floor level, distributing heat uniformly throughout the room.

The Cozy Direct-Vent Counterflow Wall Furnaces include the natural gas models DVCF403C and DVCF553C (conversion kits are available for liquid propane use). The combination of fan-forced efficiency, counterflow heat delivery and sealed combustion makes Cozy Direct-Vent Counterflow Wall Furnaces the perfect heater for multi-story units, room additions, garage apartments, vacation homes, and more.

The Cozy Challenger Floor Furnaces include the natural gas models 90N30A, 90N50A, and 90N65A (conversion kits are available for liquid propane use). The Cozy Challenger Floor Furnace provides warm, even heat through the natural convection of circulating warm air. Cozy’s scientific design ensures a high volume air exchange–as much as three to five times per hour–guaranteeing uniform temperatures throughout your home. The Cozy Challenger features a factory-mounted control with built-in pressure regulator and 100% safety pilot. The millivolt controls require no electricity to operate, so losing heat during a power failure is never an issue.

The Cozy Hi-Efficient Direct Vent Wall Furnaces include the natural gas models HEDV253A and HEDV403A (conversion kits are available for liquid propane use). Cozy High-Efficient Direct Vent Furnaces are a perfect heating solution for single-family residential, rental, vacation home, apartment, and below grade heating applications. They mount easily on any outside wall or, if vent extensions are used, on inside walls for central placement within the living space. The sealed combustion chamber draws air for combustion from outside and exhausts through a concentric vent-pipe system to the outside – retaining heat and maintaining interior air quality.

For further information or needing help picking out the right model please call Global Protankless Supply at 866-289-4652.

Cozy Heating Systems

Global Protankless Supply is pleased to announce we are now carrying the full line of Cozy Heating Systems.  Cozy is a manufacturer of direct gas heating equipment known for our commitment to product quality. Designed to withstand the test of time, Cozy heaters are engineered for long-term comfort and dependability.  Cozy Heaters use the highest quality components and constructed by expert American craftsmen, we take pride in each and every product we produce. We are committed to providing comfortable living environments for single and multi-family homes, efficiency apartments, mobile homes, cottages, room additions, bedrooms, basements, garages, family rooms, or any application where space is at a premium.

Selecting a safe and reliable heater that suits your home or business is easier than you may think. We offer many different solutions to fit any space, from wall, floor furnaces, window-mounted and even free-standing models. How you heat your living space can mean the difference between a warm or a Cozy environment. Trust your heating needs to Cozy, the leader in zone heating equipment.

For further information or needing help picking out the right model please call Global Protankless Supply at 866-289-4652.

Low Stock on Bosch 450 ESR NG (Natural Gas)

Global Pro Tankless Supply is just about out of stock on the Bosch 450ESR NG recirculating heater. The 120,000 BTU Bosch Protankless 450 ESR NG Tankless Recirculating Water Heater is temperature modulated and has an electronic ignition. Theis recirculating water heater is designed and approved for heating and recirculating potable water in conjunction with an indirect tank. The 450ESR recirculating water heater is not approved or designed for closed loop heating applications.

The Bosch 450ESR unit is not a traditional tankless water heater. It has no flow switch to respond to water flow. Instead it is a recirculating water heates 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 call Global Pro Tankless Supply at 866-289-4652 while supplies last.

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

Obsolete Bosch 125BO NG (Natural Gas) Outdoor Tankless Water Heater

Global Protankless Supply currently has 1 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 Bosch 125BO NG is a good replacement for the older GWH 425HNO NG also.  The 425HNO NG was basically the same unit but the 125BO has the standing pilot light and the 425HNO NG used the hydro ignition system.

Bosch has approved these four outdoor heaters for the following areas of the United States:

Florida, Georgia, North Carolina, South Carolina, Alabama, Mississippi, Arkansas, Texas, Virginia (only in zip codes beginning with the first three digits 233-237), Arizona (in zip codes beginning with the first three digits 850-857 and 864), Oregon (in zip codes beginning with the first three digits 970-975), Washington (in zip codes beginning with the first three digits 980-986), California (except in zip codes beginning with the first three digits 935 or 961).

Some people install these outdoor tankless water heaters for their summer homes or cabins in areas of the US and Canada that do freeze. When these heaters are installed in freezing locations the water heaters must be completely drained so that the heat exchanger and pipes do not burst. The Bosch warranty does not cover damage due to freezing.

The WebStone Isolation Valve Kits really make the task of draining these outdoor tankless water heaters easy, so they are especially recommended for this application.

Please call Global Protankless Supply at 866-289-4652 for further questions or to order.

Bosch Greenstar Boilers Installed at Elevation

The Bosch Greenstar Floor-Standing (FS) and Wall-Hung (WH) straight boilers and combi boilers are affected by higher elevations and thin air.  Input and output rates are reduced at higher altitudes due to thin air with reduced oxygen levels.  Some of the FS and WH units have a couple different fan speed adjustments that may help with the elevation.  Basically the Bosch Greenstar boilers will lose 3% for every 1000 ft of elevation.  No adjustment is needed up to 2,000' sea level.

The Larger Bosch Greenstar 151,000 BTU boilers both FS and WH units will not be effected by the fan speed adjustments and will be derated at 3% for every 1000 ft elevation.

All of the rest of the FS and WH straight boilers and combi boilers (57K BTU - 131K BTU) offer altitude adjustment which compensates for the effects of thin air, and are therefore NOT derated up to 6000 feet (1829 m). Above 6000 feet (1829 m) a rate of 3 % per 1000 feet (305 m) applies.  Please see the chart below and the fan speeds for adjustment.

Service function 0.d: Altitude adjustment:

For further help with altitude adjusments please call Bosch Greenstar Technical Support at 1-800-283-3787

Brush Set, Cleaning Tool and Cleaning Kit for Bosch Greenstar Boilers

Global Protankless Supply is pleased to announce we now carry the Bosch Greenstar Brush Set, Cleaning Tool and Cleaning Kit (7738005718).  These items are required for annual cleaning of the heat exchanger for all Bosch Greenstar Combi Boilers and Straight Boilers.  This cleaning should be done by a qualified gas technician.  Always remember to order a new burner seal when taking out and cleaning the heat exchanger.  Please see description and part numbers for the brush set, cleaning tool and cleaning kit below.

Brush Set #7719002502

Cleaning Tool #7719002503

Burner Seal #87110041680

Cleaning Kit (5 cleans) #7738005718
comes with brush set, cleaning tool and 5 burner seals

For more information and to order any of the cleaning tools or kits please call Global Protankless Supply at 866-289-4652