Or, maybe you’ve heard that because GHP systems have relatively few moving parts, and because those parts are sheltered inside a building, they are durable and therefore reliable. The underground piping often carries warranties of 25 to 50 years, and the GHPs often last 20 years or more.
However, even the best laid plans sometimes go awry. A GHP system may not work as originally intended. What do you do if that happens?