Gränichen, Switzerland, 20 January 2012 - Zehnder Group, with international operations in the indoor climate sector (radiators and ventilation), reported sales of EUR 516 million, an increase of 8%, for the 2011 business year (unaudited, EUR 476 million in 2010). The radiator segment accounted for 68% (2010: 70%) of this total and the ventilation business for 32% (2010: 30%). Organically and foreign exchange adjusted, sales revenues rose by 8%. A continuing high margin of some 10% is anticipated with regard to the operating profit (EBIT). Thus EBIT and net income should remain at the prior year's level. Results for 2011 and the annual report will be published on 23 March 2012.