Hvac systems (heating, ventilation and air conditioning); air treatment equipment; air-conditioning installations; air-conditioning apparatus; ventilating fans; installations for the cooling of air; heating apparatus; heat pumps; hot water boilers; solar water heaters; solar thermal collectors (heating); combined heating and air conditioning apparatus; heat generating apparatus; air purification devices; water purification equipment, devices and installations; water softening devices, appliances and installations; water purification, descaling and heating systems for domestic use; water purification, descaling and heating systems for swimming pools
Environmental Control Apparatus