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Bosch Greenstar 100 Combi Wall Condensing Boiler - ZWB28-3
- Natural Gas or Propane Gas - Built in Domestic Water - 91000 Btus - 100000 Btus
Product ID • 773810000200
Overview
Bosch Greenstar Combi Wall Condensing Boiler - 100 MBH - NG/LP - ZWB28-3
Bosch Greenstar condensing boilers offer efficiency levels of up to 96.1% efficiency, Turning 98.7% of the fuel used into heat - a significant upgrade compared to traditional or non-condensing boilers. Used for all type of Hot Water Heating such as Radiant, Baseboards, Radiators and more. The Bosch Greenstar ZWB28-3 has an ASME approved Al-Si heat exchanger constructed of advanced magnesium aluminum-silicon alloy offering increased flexibility versus traditional stainless steel. This highly durable heating block is corrosion resistant and designed to optimize clean burning combustion over an extra large surface area.
Bosch Greenstar ZWB28-3 100 puts out 91,000 Btu's for Heat and 100,000 Btu's for Domestic Hot Water at 96% AFUE rating.
Manuals & Docs
Technical Specs
Bosch Greenstar ZWB28-3 100 Heat Only Boiler - Techs and Specs
- Gas
- Natural Gas
- Maximum Heat Input
- 91,000 Btu/hr
- Minimum heat input
- 24.600 Btu/hr
- Maximum DWH Input
- 100,000 Btu/hr
- Efficiency
- 96%
- D.H.W. Minimum Flow Rate
- 0.5 GPM
- Domestic Hot Water Flow - 67 Degree Rise
- 2.65 GPM
- Nominal power supply voltage
- 120/60 V/Hz
- Dimensions
- 17.4 Inches L x 33.5 Inches H x 13.9 Inches D
- Domestic Water Pipe Connections
- 3/4 Inch NPT
- Heating Water Pipe Connections
- 1 Inch NPT
- Gas Pipe Connections
- 3/4 Inch NPT
- Venting Size 2 Inches
- 81 Foot Max less elbows
- Venting Size 3 Inches
- 100 Foot Max less elbows
- Maximum heating pressure
- 30 Psi
- Maximum pressure of domestic water circuit
- 150 Psi
- Weight
- 110 Pounds
- Warranty
- 10-year heat exchanger, 5-year parts, and 1-year labor limited warranty
Bosch Greenstar ZWB28-3 100 Heat Only Boiler - Features
- With On-Demand Hot Water - Combi - Wall Mounted
- Turndown to 5 to 1
- Certified DOE efficiency of 96% Efficiency
- Outdoor reset with accessory temperature sensor included
- Built-in boiler circulator pump and Expansion Tank
- Stainless Steel Flat Plate Heat Exchanger for Domestic Hot Water
- All models are field convertible from NG to LP with included conversion kit
- Can be vented with PVC or CPVC
Info & Links
