Global Protankless Supply would like to announce that Bosch Thermotechnology has just discontinued the Bosch Greenstar Wall-Hung & Floor Standing 57 Straight Boiler. There was not much demand for such a low BTU boiler but Bosch is still making the Bosch Greenstar 79, 100, 131 and 151 boilers. These boilers come in either Wall-Hung or Floor standing. The Bosch Greenstar 79 boiler is designed for heating applications only. The Bosch Greenstar boilers 100, 131 and 151 are designed for heating and also come as a combi unit for heating and DHW.
This blog focuses on the Bosch Greentherm and Bosch Therm line of Professional Gas and Propane Tankless Water Heaters and Bosch Tronic Electric tankless and mini-tank water heaters for Installers.
Wednesday, July 14, 2021
Bosch Greenstar Wall-Hung & Floor Standing 57 Boiler Discontinued
Tuesday, December 29, 2020
Bosch Greenstar Pro Series Combi 100P & Combi 151P Boilers
Global Protankless Supply now carries the Bosch Greenstar Pro Series Combi 100P and the Combi 151P boilers. The Pro series combination boilers are a special line of boilers for contractors. These Pro series combination boilers are sold at a cheaper cost and do not include some items the original Bosch Greenstar combination boilers contain. These units are designed for heating and DHW applications. Please see below for what is and is not included with the Pro Series Combi 100P & Combi 151P boilers.
Bosch Greenstar Pro Series
Product offered in 100 and 151BTU Combi
CRC200 thermostat not included
Concentric vent adapter included
Expansion vessel not included
LP conversion kit included
Wall and piping bracket included
Warranty – limited life time heat exchanger
5 years parts, 1 year labor
Please call Global Protankless Supply at 866-289-4652 for further questions or to purchase a Bosch Greenstar Pro Series Combination boiler.
Thursday, February 4, 2016
Bosch Gas Tankless Water Heaters and Tank Loading Applications
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.
Friday, May 31, 2013
Descaling Bosch Gas Tankless Water Heaters
All of the Bosch gas tankless water heaters both in natural gas (NG) and Liquid Propane (LP) should be descaled now and then on a periodic basis depending on the quality of the water in your area. Some towns have low mineral content while others are very hard. Scale is basically mineral deposits in the water that pass through the copper tubing of the heat exchanger and after heating up they stick to the insides of the copper piping and over long periods of time will restrict the flow of water through the heat exchanger causing issues and overheating.
Global Pro Tankless Supply sells a Flow-Aide Descaling Kit that allows the user to flush the Bosch tankless water heater with not much work involved and eliminates the scale built up in the heater.
Flow-Aide is: Non-Corrosive, Non-Toxic, Fully Biodegradable*, Safe to Handle, Zero V.O.C.
IMPROVE EQUIPMENT EFFICIENCY: Water scale deposits are a significant cause of heat transfer loss, along with the subsequent increase in energy costs. In fact, even a thin layer of scale (1/32") can cause a 30% increase in the cost to operate that piece of equipment. Keeping the heating passages free of mineral deposits significantly improves efficiency, conserves energy, extends the useful life of the equipment, and saves you time & money.
The Flow-Aide Descaling Kit includes the following:
1 - 3.5 Gallon Bucket
1 - 350 GPH Pump
2 - 5 Foot Rubber Hoses
1 - Quart Flow-Aide
Friday, July 6, 2012
Bosch SST Stainless Steel Indirect Storage Tanks for DHW
Bosch SST Stainless Steel Indirect Storage Tanks for Domestic Hot Water come in four models ranging from 40 gallons up to 119 gallons:
- Bosch SST150-40 - 40 gallon storage tank; 115,000 Max BTUs
- Bosch SST250-65 - 65 gallon storage tank; 154,000 Max BTUs
- Bosch SST300-80 - 80 gallon storage tank; 171,000 Max BTUs
- Bosch SST450-119 - 119 gallon storage tank; 216,000 Max BTUs
The Bosch SST Stainless Storage Tanks feature the following:
- 316L passivated stainless steel tank interior provides superior durability & longevity, offering resistance to the corrosive tendencies on domestic water
- 304L high capacity stainless steel coil efficiently transfers high volumes of BTU's from heat source to domestic water stored in the tank, making 1st hour delivery among the industry's best
- High density CFC/HCFC free polyurethane foam insulation yields the lowest stand-by losses in the industry
- State-of-the-art six axis programmable robotic welder uses computer guidance to accurately weld all stainless steel fittings and coil to the tank
- Warranty: limited lifetime tank & parts


