These costs can be estimated in advance by your installer. The buried pipe, or ground loop, is the most recent technical advance in heat pump technology. The idea to bury pipe in the ground to gather heat energy began in the 1940s. Only recently, however, have new heat pump designs and improved buried pipe materials been combined to make GHP systems the most efficient heating and cooling systems available. They use renewable energy from the sun, and because the system doesn't rely on outside air, keeps the air inside of buildings cleaner and free from pollens, outdoor pollutants, mold spores, and other allergens.
Most units are easy to install, especially when they are replacing another forced-air system.
This is known as a retrofit. GHPs can be installed in areas unsuitable for fossil fuel furnaces because there is no combustion and thus no need to vent exhaust fumes. Ductwork must be installed in homes without an existing air distribution system. The cost of installing ductwork can be assessed by your dealer or installer. Yes, in most cases.