When my hubby, Bob, in addition to I built our home. We looked into geothermal heat pumps for our heating. We were shocked by the cost of purchase in addition to upgrade. The largest expense is the excavation for the underground loop system. A series of pipes are buried in the backyard to take advantage of the relatively stable year round temperature found underground. This loop system can be expected to last fifty years. The actual heat pump is installed inside the home, protected from the elements, in addition to should last a minimum of twenty years. This is a much longer lifespan than basic heating/cooling equipment. The heat pump draws from the free underground energy source, in addition to actually produces more units of energy than it requires to operate. We can maintain perfect year round temperature for right around a dollar a day. The much lower cost for HVAC should salvage the higher initial investment within many years. I love that the heat pump is harshly quiet, clean in addition to safe. It provides both heating in addition to cooling and maintains legitimately even temperature. Plus the geothermal system effectively handles warm season humidity in addition to doesn’t overly dry out the indoor air in heating mode. We were very happy with our choice to do this for the new home!