Overstocked on Bosch Tronic 6000C WH17 & WH27

Global Protankless Supply is currently overstocked on the Bosch Tronic 6000C WH17 & WH27 whole-house electric tankless water heaters.  The Bosch Tronic 6000 C WH17 (45-551721, 45551721) & WH27 (45-557721, 45557721) are ideal for replacing your electric storage tank water heater. The Bosch Tronic 6000 WH17 & WH27 electric whole house tankless water heaters are compact and powerful and can installed virtually anywhere inside the home. Advantages include endless hot water, reduced electricity costs and substantial space savings. These new models feature a digital display and a thermostat control on the front of the unit.  Below are more details and specifications for these 2 models.

The Bosch Tronic 6000C WH27 is the direct replacement for the Bosch Tronic 5000 C WH27 (45-557710, 45557710) and it also replaces the older Powerstream Pro RP27PT (45-551302, 45551302, 45-557702, 45557702) and the Bosch PowerStar AE125 (45-557701, 45557701, 45-551301, 45551301). Please note that the older Powerstream Pro RP27PT and the PowerStar AE125 electric tankless water heaters were 15.5 x 15.25 x 4.5 inches while the Bosch Tronic 6000 Model WH27 measures 12.5 x 15.25 x 4.5 inches, just like the Bosch Tronic 5000 WH27. 

Bosch Tronic 6000 WH27 Electric Tankless Water Heater Specifications:
• Efficiency - 94%
• Weight - 22 lbs.
• Dimensions - 12½" x 15¼" x 4½"
• Water Fittings - ¾" male NPT
• Volts - 240
• Kilowatts - 26.85kWh
• Amps -
 o US: 120 (3 x 40 amps)*
 o CANADA: 120 (1 x 120 amps)**
• Wire Size -
 o US: 8 gauge (6 conductors & ground)
 o CANADA: 2 gauge (2 conductors & ground)**
• Phase - Single
• Minimum Flow Rate at Given Temperature Rise -
 o 45ºF Rise 4.0 gpm***
 o 50ºF Rise 3.7 gpm
 o 60ºF Rise 3.0 gpm
 o 70ºF Rise 2.6 gpm
 o 80ºF Rise 2.2 gpm

The Bosch Tronic 6000C WH17 is the direct replacement for the Bosch Tronic 5000 C WH17 (45-551710, 45551710) and it also replaces the older Powerstream Pro RP17PT (45-551702, 45551702, 45-550302, 45550302) and the Bosch PowerStar AE115 (45-551701, 45551701, 45-550301, 45550301). Please note that the older Powerstream Pro RP17PT and the PowerStar AE115 electric tankless water heaters were 15.5 x 15.25 x 4.5 inches while the Bosch Tronic 6000 Model WH17 measures 12.5 x 15.25 x 4.5 inches, just like the Bosch Tronic 5000 WH17. 

Bosch Tronic 6000 WH17 Electric Tankless Water Heater Specifications:

• Efficiency - 94%

• Weight - 22 lbs.

• Dimensions - 12½" x 15¼" x 4½"

• Water Fittings - ¾" male NPT

• Volts - 240

• Kilowatts - 17.25kWh

• Amps -

 o US: 80 (2 x 40 amps)*

 o CANADA: 120 (1 x 80 amps)**

• Wire Size -

 o US: 8 gauge (4 conductors & ground)

 o CANADA: 2 gauge (2 conductors & ground)**

• Phase - Single

• Minimum Flow Rate at Given Temperature Rise -

 o 45ºF Rise 2.6 gpm***

 o 50ºF Rise 2.3 gpm

 o 60ºF Rise 2.0 gpm

 o 70ºF Rise 1.7 gpm

 o 80ºF Rise 1.5 gpm

Please call Global Protankless Supply at 866-289-4652 with any questions or to place an order.

Limited Stock on Bosch Tronic 6000C WH17 & WH27

Global Protankless Supply would like to announce that the Bosch Tronic 6000C WH17 & WH27 whole House electric tankless water heaters are currently on Back order from Bosch Thermotechnology until the last week in September 2021.  

Global Protankless Supply still has a limited amount of stock on the Bosch Tronic 6000C WH17 & WH27.  Please call soon to place an order while supplies last.  You can view the Bosch Tronic 6000C WH17 & WH27 at the links provided below.

Bosch Tronic 6000C WH17 

Bosch Tronic 6000C WH27

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

Bosch Tronic 5000 WH36 Electric Tankless Water Heater Discontinued

Bosch Thermotechnology has recently announced they are ending the production immediately of the Bosch Tronic 5000 WH36 whole house electric tankless water heater.  This unit required the home to have at least a 300 amp service and the heater got hard wired in using 6 gauge wire to 3 - double pole 60 amp breakers. 

Global Protankless Supply has a limited number of these left in stock so order now!

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

Stiebel Eltron Tempra B & Tempra PLUS Electric Tankless Water Heaters

Global Protankless Supply is now carrying the full line of Stiebel Eltron electric tankless water heaters.  The Stiebel Eltron Tempra B & Tempra Plus models are a whole house electric tankless water heater.  These units provide endless hot water and are great for saving space. 

The Stiebel Eltron Tempra B units can be used with 240V/220V or 208V and come in a variety of different KW units ranging from 12KW up to 36KW for all types of applications.  These units are 99% efficient.  The Stiebel Eltron Tempra B units can accept inlet water temperatures up to 131 degrees F.  The Tempra B models have a temperature control on the front of the unit allowing the temperature to be adjusted from 86 - 140 degrees F.  Please remember anything over 125 degrees F is scalding.  A thermal cut-out switch provides an excellent safety measure and ensures that the heating elements will not need replacement, as they do with many other electric tankless water heaters. This small unit can be installed virtually anywhere in the home and, of course, produce an endless supply of hot water.  Below are links for the Stiebel Eltron Tempra B units:

Stiebel Eltron Tempra B Models:
Tempra 36 B
Tempra 29 B
Tempra 24 B
Tempra 20 B
Tempra 15 B
Tempra 12 B

The Stiebel Eltron Tempra PLUS units can be used with 240V/220V or 208V and come in a variety of different KW units ranging from 12KW up to 36KW for all types of applications.  These units are 99% efficient.  The Stiebel Eltron Tempra PLUS units can accept inlet water temperatures up to 131 degrees F.  The Tempra PLUS models have a temperature control on the front of the unit allowing the temperature to be adjusted from 86 - 140 degrees F.  The Tempra PLUS units also have a digital display that shows the temperature of the water when the unit is in use.  Stiebel Eltron Tempra Plus units come with Advanced Flow Control so if the unit senses too high a flow it will reduce the water flow to maintain a more consistent temperature.  Please remember anything over 125 degrees F is scalding.  A thermal cut-out switch provides an excellent safety measure and ensures that the heating elements will not need replacement, as they do with many other electric tankless water heaters. This small unit can be installed virtually anywhere in the home and, of course, produce an endless supply of hot water.  Below are links for the Stiebel Eltron Tempra PLUS units:

Stiebel Eltron Tempra PLUS Models:
Tempra 36 PLUS
Tempra 29 PLUS
Tempra 24 PLUS
Tempra 20 PLUS
Tempra 15 PLUS
Tempra 12 PLUS

For further questions or to place an order please call Global Protankless Supply at 866-289-4652

7 Ways to Heat Domestic Hot Water with Bosch Products

Are you looking to heat your domestic hot water (DHW) for your showers, sinks, dishwasher and washing machine? If so, Bosch offers 7 different ways to achieve this goal in highly efficient ways! This blog entry provides a detailed comparison of the different ways Bosch can help you heat your DHW.

1) Bosch Therm gas and propane condensing tankless water heaters. Bosch offers several models of condensing tankless water heaters ranging from 175,000 BTUs up to 225, 000 BTUs. These electronic-ignition tankless water heaters have a secondary condensing heat exchanger that reclaims heat and redirects this heat back to the water thus reducing the exhaust temperature. As a result the exhaust temperature is cool enough to be exhausted via 3" or 4" PVC or CPVC piping. These heaters are generally about 92% efficient and can produce enough hot water for 2 to 3 showers at a time, depending on where you live.

2) Bosch Therm gas and propane non-condensing tankless water heaters. Bosch offers several models of non-condensing tankless water heaters ranging from 75,000 BTUs up to 199,000 BTUs. On the higher end from 175,000 BTUs up to 199,000 BTUs the Bosch tankless water heaters have an electronic ignition and require special 3" or 4" stainless steel venting. These heaters are about 82% efficient and are a great solution for most families. On the lower end the heaters range from 75,000 to 117,000 BTUs and have either a standing pilot light or use Bosch's patented Hydro Ignition system. These heaters are perfect for "off-grid" installations or areas with frequent electricity outages. In the mid-range Bosch offers both indoor and outdoor electric-ignition 140,000 BTU heaters that require 3" stainless steel vent pipe.

3) Bosch Tronic electric tankless water heaters. The Bosch Tronic line of electric tankless water heaters are available both in whole-house models (Tronic 5000 Series) or in point-of-use models (Tronic 3000 Series). Both the Tronic 5000 and 3000 Series heaters are tankless and will produce endless hot water. Be sure to verify that your electric supply meets the minimum requirements for these heaters. The Amperage is the key.


4) Bosch Ariston Pro Ti electric mini-tank water heaters. The Ariston Pro Ti line of mini tanks range from 2.5 gallons up to 7 gallons. Like a regular hot water tank, these mini-tank heaters keep water hot and ready for use in highly efficient glass-lined tanks. These heaters are perfect for point-of-use applications, but will generally be insufficient for showers. The heaters plug directly into a 110 wall outlet and draw only 12.5 Amps.

5) Bosch Compress 3000 HP 200-1 heat pump. The 50 gallon Bosch Compress heat pump is a great addition to the Bosch line of domestic hot water heating products. This ultra efficient water heater uses technology similar to an EnergyStar qualified refrigerator. Rather than taking heat from the inside of the appliance and moving it outside as a refrigerator does; the Bosch heat pump technology takes heat from outside the appliance and uses it to heat the water!


6) Bosch Greenstar Combi Boilers. Bosch offers two Greenstar Combination ("Combi") boilers ranging from 100,000 BTUs up to 151,000 BTUs. Each of these two Combi boilers can heat hot water for space heating as well as provide for a domestic hot water loop. These wall-hung, gas-fired condensing boilers are highly efficient. They come ready for natural gas and include a kit to swap over to propane use. Heating DHW with a Greenstar Combi boiler is perfect for homes that require hot water for their space heating needs.


7) Bosch Greenstar Boilers with Indirect Tanks. The Bosch Greenstar lineup of space heating boilers includes four gas-fired condensing boilers ranging from 57,000 BTUs up to 151,000 BTUs. Heating DHW with a Bosch Greenstar space heating boiler is simple when used in combination with a Bosch SST Stainless Steel Indirect Storage tank. Bosch offers four models of indirect storage tanks ranging from 40 gallons up to 119 gallons. The boiler heats a coil that runs through the indirect storage tank which in turn heats the potable water in the tank. 


With seven different ways to heat DHW, Bosch offers a solution for just about any application or need.