In this episode, HVAC expert, Dan Danowski, explains the difference between a geothermal heat pump and a regular heat pump. Video Script: Oh, hey! Welcome to Ask the Expert. I'm Dan, I'm your expert. Today we're going to answer your hot heating and cooling questions. Our first question is from Samantha in Nashville, Tennessee. Great town! She says, "What is a geothermal heat pump?" Well, first, what is geothermal? Right? That comes from the Greek. You've got the word "geo," which means the earth - what we're standing on. And "thermos" meaning the thing I keep my coffee in. And you get "geothermal" from that. A geothermal heat pump is a heat pump that moves heat in and out of your house to cool it or heat it. But there is a big difference. A geothermal heat pump uses a buried ground loop. It's not taking the heat out of the air, it's taking it out of the ground. That connects up to your heat pump unit in the house. It uses that to move heat and it stores that heat in the summer and then takes it out in the winter, which makes it way more efficient and longer-lasting and friendlier. They are very green and eco-friendly. Though, it's not great for everybody. If you live on the moon, you can't have one. So, if you want a very high-efficiency system, I would recommend the geothermal heat pump. In a lot of places and in a lot of states you can really get a lot of nice tax breaks or credits on those. You should look into it! Ok, I'm Dan, bye! For more questions for Dan, ask in the comments below or on Facebook, or Twitter.