Bosch Combi Boiler – 134,400 BTU – Greenstar ZWB42-3

The Bosch ZWB42-3 High-Efficiency Regular Boiler is a powerful, high-performance heating solution designed for larger homes or properties with substantial heating and hot water needs. This unit provides reliable space heating and optimal energy savings, ensuring maximum comfort year-round.

With a heating capacity of 140,000 BTU, the ZWB42-3 is perfect for homes with high heating demands or multiple heating zones. Its natural gas operation and condensing technology ensure superior heat transfer, maximizing efficiency and reducing energy consumption. The modulating burner adjusts output based on real-time heating needs, ensuring that only the necessary amount of energy is used to maintain a comfortable living environment, helping reduce fuel costs.

Bosch is known for its innovative, durable heating products, and the ZWB42-3 continues this legacy with an impressive 95% AFUE (Annual Fuel Utilization Efficiency) rating. This high-efficiency boiler not only helps homeowners lower their utility bills but also reduces environmental impact. The condensing technology recovers heat from the flue gases that would otherwise be wasted, providing even greater energy efficiency and contributing to a greener, more sustainable home.

The expected lifespan of the ZWB42-3 is between 12 and 15 years, depending on installation quality and regular maintenance. Routine maintenance, such as system flushing and descaling, will help extend the unit’s lifespan and ensure it performs at its best.

This Bosch ZWB42-3 High-Efficiency Regular Boiler comes with a 5-year warranty on parts and a lifetime warranty on the heat exchanger, offering long-term peace of mind and reliability. When purchased through HVAC Fixed, you’ll also receive a 1-year free labor warranty, with financing options available from 1 to 20 years. You can add an extended labour warranty for additional protection and lasting value.

Related Documents

• Bosch Greenstar Brochure
• greenstar_warranty