The Properties and Purposes of a Geothermal Heat Pump

What the great majority of homeowners 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 wrong– that much less to need maintenance. And that alone makes a great difference in decreasing the overall energy costs of Medina homeowners who’ve gone geothermal.

 

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

This is the engine that drives the system. Its task 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 climate30. Thus, it’s a furnace and an air conditioner integrated into one unobtrusive package.

What, then, does a heat pump use to transfer heat? Water! Well, that or a solution containing antifreeze. This liquid flows 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 distributed throughout a home by either a forced air or a hydronic system. During cooling season it runs the other way ’round: the pump draws heat from your home and transfers it underground via those same buried loops. Oh, and somewhere along the way, many geothermal systems also provide domestic hot water.

The basic distinction between a geothermal heat pump and a ordinary furnace is that a heat pump doesn’t set fuel burning to generate heat. Instead it takes heat that’s already present and just moves it around. That naturally makes it a much more efficient heating and cooling system. Recognize this, too: underground temperatures almost always hold at around 50º F all year long. And that means? A geothermal heating and cooling system requires significantly less energy to cool your home than regular air conditioners.

So … is a geothermal system the right solution for your Medina home? Look to this region’s geothermal gurus, the helpful gang at Sisler Heating & Cooling, Inc..