A traditional central air system only works in the cooling mode. However, in the last decade, a new type of Central AC system has gained popularity – an Air Source Heat Pump (also known as Reversed Cycle Air Conditioner). A typical 3 TON (36,000 BTUs), 16 SEER air source heat pump, which is appropriate for a home size of about 1500-1850 sq.ft. costs $6,750 to install, compared to $4,990 for same size 14 SEER regular Central AC. A more efficient 18 SEER central air heat pump unit costs $8,800 to install. How Much Does An Air Source Heat Pump Cost?… Read more »