![Bosch Thermotechnology ZWB28-3A Bosch Greenstar Combi 100P - 89K BTU - 95.0% AFUE - Combi Gas Boiler - Direct Vent Bosch Thermotechnology ZWB28-3A Bosch Greenstar Combi 100P - 89K BTU - 95.0% AFUE - Combi Gas Boiler - Direct Vent](https://www.ecomfort.com/products-image/1000/93591-147213-thickbox.jpg)
Bosch Thermotechnology ZWB28-3A Bosch Greenstar Combi 100P - 89K BTU - 95.0% AFUE - Combi Gas Boiler - Direct Vent
Bosch Home Comfort - A detailed Greenstar boiler install by Pete Yeager. The Bosch Greenstar boiler is small, ultra quiet, environmentally friendly, and uses fuel-efficient condensing technology to deliver an AFUE rating
Bosch Home Comfort - Awesome Greenstar Boiler install! Big thanks to our friends at Hydrowest Products for sharing with us. Send us your best Bosch installs to be featured! | Facebook
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Bosch Home Comfort USA on Twitter: "A fully-modulating fan helps maximize efficiency of the #Bosch Greenstar #boiler by ensuring that the unit operates with optimal combustion. Install by #contractor Ethan Comeford in
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