The Simple Features and Functions of a Geothermal Heat Pump

One of the best things about a geothermal heating and cooling system is that it has so few moving parts. There’s just that much less that can go bad– that much less to maintain. And that by itself goes a long way toward decreasing the overall energy costs of Greensburg homeowners who’ve gone geothermal.

 

That said, there are some moving parts in the system. Most of them are found in its most conspicuous component, too: the geothermal heat pump.

This is the system’s powerplant. 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 the weather30. Thus, it’s a furnace and an air conditioner united in one discreet package.

Water – or an antifreeze solution – is the medium the heat pump uses to transfer heat. This liquid courses through loops of underground pipes to which the heat pump is linked 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 there the heat is dispensed throughout a home by way 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 earth through those same buried loops. Oh, and somewhere along the way, many geothermal systems also supply domestic hot water.

The basic distinction between a geothermal heat pump and a traditional furnace is that a heat pump doesn’t burn fuel to generate heat. Rather, it takes heat that’s already present and merely moves it around. That naturally makes it a much more efficient heating and cooling system. Keep this in mind, too: underground temperatures most often stay at around 50º F all year long. And that means? A geothermal heating and cooling system requires substantially less energy to cool your home than regular air conditioners.

So … is a geothermal system best for your Greensburg home? Look to this region’s geothermal specialists, the cordial gang at Wallpe Heating & Cooling.