Bosch ZWB28-3 Greenstar Combination Boiler 100 Wall Model

The Greenstar is built using precision German engineering that includes Bosch designing and manufacturing all of key components; like our unique heat exchanger and control systems. It features reliable, ultra-quiet operation, fast, easy installation and very low maintenance costs. The intelligent digital control systems allow for precise boiler control using indoor and/or outdoor temperature sensing, as well as options for controlling domestic hot water. The largest model provides ideal comfort for almost any home, and can run two standard showers simultaneously. In addition, the Greenstar includes a highly efficient 95% AFUE aluminum silicon heat exchanger which makes the boiler eligible for you to save up to 75% in Federal, State and local credits. Visit BoschHeatingAndCooling.com to find the available efficiency rebates in your area.

Greenstar Combination Boiler

• Boiler with an integrated system for providing tankless domestic hot water
• All-in-one solution with very low installation effort and very few external components
• Small, lightweight form factor allows for replacement of any wall boiler ease and speed with minimal piping and venting changes
• Efficiency is maintained while producing domestic hot water, unlike most combi-boilers on the market 

Superior Design & Components

At Bosch we design and manufacture all of our key components in-house, our assembly process is tightly controlled, our standards are driven by the Automotive sector as Bosch is the world's largest supplier to automobile manufacturers; all processes are documented, monitored & traceable. Before your new boiler leaves the factory it is live fire tested and tuned for optimal efficiency. Bosch Greenstar Condensing Boilers feature industry-leading design and reliable internal components built to deliver optimal heating comfort year after year all while being energy efficient!