depends on your area and contractor but probably around 3-3500
When was Air Conditioners invented
Air tanks were invented to hold compressed air.
The hot-air balloon was invented in 1783.
Air pressure exists, it wasn't 'invented' it was discovered.
Bob Surloff invented air freshener in 1946
W.H. Carrier invented the air conditioner in the US in 1902.
Willis Carrier invented air conditioning.~Hope it helped
George Westinghouse invented the air brakes
George Westinghouse invented the automatic air brake in 1869
they were invented in 1782
The Luftwaffe invented air raids during the Spanish Civil War.