Heat economically and in an environmentally friendly way? -It all depends on the heating boiler! Efficiency and environmental sustainability are the top priorities for Upper Austrian heating boiler manufacturer ETA. And they have the right heating solution ready for any requirement. Logs, wood chips or pellets: enough to heat a residential house as a whole office building. But the heating boiler must fit. One of the most innovative manufacturers of boiler heaters is located in Hofkirchen an der Trattnach in Upper Austria: ETA Heiztechnik GmbH has specialised in heating systems based on renewable energy since 1998. Only fuels from sustainable sources, i.e. wood or miscanthus (elephant grass, Miscanthus sinensis) are used for heating. The company has about 230 employees and produces over 10,000 boilers per year.