HOVAL

[ measuring apparatus and instruments for heating, drying, ventilating and air conditioning systems; signaling apparatus and instruments for heating, drying, ventilating and air conditioning systems, namely, emergency warning lights, signal transmitters,emergency signal transmitters; electric and electronic controlling and regulating apparatus for heating, drying, ventilating and air conditioning systems; and automatic control apparatus for heating, drying, ventilating and air conditioning systems ]

Industrial and furnace boilers for [ liquid, ] gaseous [ and solid ] fuels; [ steam producing industrial and furnace boilers, ] fuel central heating boilers, combination fuel heating boilers for central heating and hot water preparation; [ water heaters for hot water supply systems and parts thereof; ] heat exchangers for heating systems; [ and parts thereof; solid fuel burners for industrial and domestic use; solid fuel, oil and gas burners for industrial and domestic use and parts thereof ventilating and air-condition installations and parts thereof, namely, air heaters, air coolers, air filters, sound insulators the nature of mufflers, ] heat recovery heat exchangers for ventilating and air conditioning systems