1734: The first ever axial fan was installed in the Houses of Parliament in London, Great Britain. Powered by a steam engine, it worked for more than 80 years without repair.
1754: Leonard Eyler developed the fan theory, which created a basis for calculation of contemporary mechanical ventilation systems.
1763: Mikhail Lomonosov published his work “About the Free Movement of Air in Mines”. Concepts described in the work created a basis for estimation of natural ventilation systems.
1810: The first ever calculated natural ventilation system was installed at a hospital in Derby, a London suburb city.
1815: Jann Shabannes of France received a British patent for the “method of air conditioning and temperature adjustment for residences and other types of buildings…”
1852: Lord Kelvin developed guidelines for heating up rooms with a cooling machine (using it as a heat pump). Four years later the idea was almost implemented by Von Rittenger of Austria.
1929: General Electric, the USA, developed a pioneer home AC.
1931: A healthy coolant – Freon – was invented. It created a revolution in the sphere of climate control.
1958: Daikin came up with an AC capable of both cooling down and heating up rooms using the heat-pump approach.
1966: Hitachi was the first company ever to introduce an AC featuring a dryer. Four years later, it pioneered in implementing the function in split systems.
1968: Daikin came up with an AC featuring two indoor and one outdoor unit. That was how multi-split systems appeared.
1977: Toshiba produced the first microchipped AC.
1982: Daikin developed and launched production of VRF – a new type of central air conditioning systems, which use a complex approach to air conditioning and ventilation.
1998: Sanyo came up with a VRF system with non-inverter power adjustment.
1995: The use of coolants was rejected due to the ozone layer depletion.
2002: Haier came up with the first AC intended for home use, which was capable of increasing oxygen level in the air.
This is not the end of the evolution of climate control technologies, and many existing types of equipment are being upgraded. New functions, design solutions, and types of coolants are being developed and introduced.