Control apparatus and instruments, all for use with heating, ventilating or air-conditioning apparatus; thermometers not for medical use, temperature indicators and temperature sensors; pressure gauges; instruments and apparatus, all for regulating or controlling the pressure of gases, steam or vapors; safety devices for releasing pressures; electrical ignition apparatus for gas fired appliances or for liquid fuel burning apparatus; piezoelectric spark ignition devices for gases or flammable vapors; thermostats and thermostatically controlled switches; liquid level indicators for liquid fuel storage tanks or for water tanks or vessels, or for level control switches; flow gauges; electrical coils for incorporation into fans or space heating installations; electrical resistances and rheostats, all for incorporation into heating ventilating, lighting or air-conditioning apparatus; control panels for electrically operated apparatus; electrical switches and circuit breakers/closers; fire alarms; fire detection apparatus; fire protection and fire safety apparatus; fire extinguishing apparatus; fuses and fuse boxes and electrical safety apparatus, all for domestic or commercial premises; electrical wiring and electrical apparatus all for use with heating, drying, ventilating or air-conditioning apparatus; printed circuits and micro-processors, all for use with timing mechanisms or programmable operating cycles of machines or apparatus; indicator lamps and display devices, all showing the activation of electrical apparatus or programming of electronic switching gear; smoke detection apparatus; capacitors and electrically chargeable plates, all for use with electrostatic precipitators; parts and fittings for all the aforesaid goods; all included in this class

Air filters for purifying environmental air; air or gas pollution control apparatus; fans and fan assemblies; apparatus for producing a curtain of air for insulating or heating purposes; apparatus for re-circulating and distributing air, being energy conservation devices for preventing waste by recirculating warm environmental air within factories or work premises; fittings for water supply installations; all included in this class 11; installations and apparatus, all for ventilating, air conditioning and refrigerating; installations and apparatus included in this class 11, all for drying crops or for heating or for cooling; heat exchangers (not parts of machines); heat pumps (not parts of machines) being devices for transferring heat by means of an evaporation/condensing cycle using a fluid as heat transfer medium; boilers (not part of machines); water softening apparatus; pressure water tanks; parts and fittings included in this class for all the aforesaid goods