Burners, boilers and heaters, in particular electric instantaneous water heaters; heating, ventilating, and air conditioning and purification equipment (ambient), in particular water purification apparatus; sanitary installations, water supply and sanitation equipment, in particular air purification apparatus; filters for industry and household, in particular water filters and air filters.

Burners, boilers and heaters, in particular electric instantaneous water heaters; heating, ventilating, and air conditioning and purification equipment (ambient); solar thermal collectors [heating].