More than 100 years of Zehnder
Zehnder America Inc. provides high quality heating and ventilation solutions to promote comfortable, healthy, and energy-efficient indoor living. Zehnder America is a division of the Zehnder Group, headquartered in Switzerland. The Zehnder Group is represented worldwide and specializes in advanced heating, cooling, and ventilation technology.

Zehnder official site: http://www.zehnder.co.uk/