Geothermal Furnace Filters

One of the advantages of owning a geothermal heat pump is that there's little maintenance to perform on the equipment. Unless you are having a mechanical issue, often you won't need a service tech to come out for that yearly checkup. That said, there is something you should do every six months, and that's change the air filter. But what type of filter should you select? There are numerous choices, each with their own advantages and disadvantages. Let's take a look at why geothermal furnace filters are essential, how often you should replace them and which type is right for your scenario.