Heat pumps are the most reliable heating units on the market. They are simple in design and have few moving parts, so they rarely break down. A couple very minor electrical part replacements are the most that the majority of system owners see in the lifetime of the system. Maintenance on the system is also very simple, just change the air filter every few years like you would a conventional system, and your system is good to go. No chimneys or furnaces to clean in addition to that.

With no noisy burners to fire up, or loud fans to kick in to force the air through your house, heat pumps are also very quiet.