Bosch Combi Boiler – 135,000 BTU – Greenstar ZWB42-3A

The Bosch ZWB42-3A High-Efficiency Regular Boiler is a powerful, high-performance heating solution designed for larger homes or properties with significant heating and hot water needs. This unit delivers consistent, reliable heating and optimal energy savings, ensuring maximum comfort throughout the year.

With a heating capacity of 140,000 BTU, the ZWB42-3A is perfect for homes with high heating demands or multiple heating zones. Its natural gas operation and advanced condensing technology ensure efficient heat transfer, maximizing energy use and minimizing fuel consumption. The modulating burner adjusts its output based on real-time heating demands, ensuring that only the required amount of energy is used to maintain a comfortable indoor climate, reducing heating costs.

Bosch is a renowned brand known for producing durable, energy-efficient heating systems. The ZWB42-3A upholds this reputation with an impressive 95% AFUE (Annual Fuel Utilization Efficiency) rating, helping homeowners save on their utility bills while enjoying reliable, consistent heating. The advanced condensing technology captures heat from the exhaust gases that would otherwise be wasted, ensuring that every bit of energy is used effectively, leading to a more sustainable, eco-friendly heating solution.

The expected lifespan of the ZWB42-3A is between 12 and 15 years, depending on installation quality and routine maintenance. Regular maintenance, such as system flushing and descaling, will help prolong the life of the boiler and maintain peak performance.

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

Related Documents

• Bosch Greenstar Brochure
• greenstar_warranty