As of 2015, general information on what Bosch condensing combi-boilers are and how they work can be found on the website of the Bosch Experience Center. The company provides more detailed information on its various combi-boiler models on the website of the Bosch Thermotechnology division.
As of 2015, Bosch Thermotechnology produces three models of space heating and domestic water combination or combi-boilers: the Greenstar Combi 100, Greenstar Combi 131 and Greenstar Combi 151. All three models are compact and designed to be hung directly on a wall to save space. These gas condensing boilers are rated at 95 percent efficiency and produce low emissions while still offering reliable performance. The low emissions and high efficiency comes from the fact that these models recycle the exhaust fumes to capture and reuse any remaining latent heat.
The Bosch Experience Center is an interactive educational center located within the sustainable community development of Serenbe in Chattahoochee Hills, Georgia. At the center and on its official website, Bosch features information about energy efficient and sustainable technology for various purposes, including appliances, home security, power tools, sound systems and more. In addition to information on the combi-boilers, the website also provides details about Bosch geothermal heat pumps, tankless water heaters, electric heat pump water heaters and solar thermal solutions.