The How and Why of a Geothermal Heat Pump

What the great majority of people say they love most about a geothermal heating and cooling system is that it has so little in the way of moving parts. There’s just that much less that can go bad– that much less to need maintenance. And that alone plays a significant role in slashing the overall energy costs of WISCONSIN-MINNESOTA homeowners who’ve gone geothermal.

 

Of course, there are some moving parts in the system. the majority of them are found in its most essential component, too: the geothermal heat pump.

This is the system’s workhorse. Its job is to transfer heat. And it transfers heat either from the ground into your house or from your house into the ground, depending on seasonal temperatures. Thus, it’s a furnace and an air conditioner integrated into one discreet package.

What, then, does a heat pump use to transfer heat? Water! Well, that or a solution containing antifreeze. This liquid flows through pipe loops planted underground and secured to the heat pump, which is kept above ground. During heating season the liquid draws heat from the ground, the heat pump draws the warm liquid up into refrigerant coils, and from that point the heat is dispensed throughout a home by means of either a forced air or a hydronic system. During cooling season the process is reversed: the pump draws heat from your home and transfers it to the ground through those same buried loops. Oh, and somewhere along the way, more than a few geothermal systems also supply domestic hot water.

The essential difference between a geothermal heat pump and a common furnace is that a heat pump doesn’t burn fuel to generate heat. No, indeed, it takes heat that already exists and simply moves it around. That naturally makes it a much more efficient heating and cooling system. Remember this, too: underground temperatures most often stay at around 50º F through the year. And that means? A geothermal heating and cooling system uses considerably less energy to cool your home than regular air conditioners.

So … is a geothermal system best for your WISCONSIN-MINNESOTA home? Turn to this region’s geothermal pros, the friendly gang at Comfort By Design, Inc..