Heating installations, including central heating installations, radiators, boilers and radiators incorporating boilers, fan radiators and heaters, and parts and fittings for all said goods, but excluding heating installations in the form of appliances for heating, warming or cooking foodstuffs for commercial or domestic applications, and excluding parts and fittings for such excluded goods

Electrical and non-electrical apparatus and instruments for measuring, signalling, regulating and controlling technique; in particular these apparatus and instruments for heating, ventilating and air conditioning and facilities made thereof as well as their characterising parts, and for heat pumps, solar collectors and solar accumulators and apparatus for sanitary purposes

Apparatus for heating, ventilating and air conditioning and facilities made thereof as well as their characterising parts as far as included in class 11; heat pumps, solar collectors and solar accumulators, apparatus for sanitary purposes