The Basic Science of Geothermal Heating and Cooling

A good many homeowners here in New Jersey, New Jersey, have sought J. Zanes LLC to make their homes geothermal homes. Still hesitant about geothermal heating and cooling yourself? Knowing something of the science behind it – and the mechanics as well – would undoubtedly help.

We’ve noted elsewhere the merits of geothermal heating and cooling. It’s quite sufficient to say here that hardly any other methods of maintaining apleasant home environment all year long are as efficient, trustworthy, or economical, especially when you take into account the energy savings.

Here’s how geothermal makes that a reality.

Thar’s Gold Heat in Them Thar Hills!

We tap the earth for precious metals. We tap the earth for oil. Now, more than ever, we’re tapping the earth for a resource probably just as valuable to most of us: the energy to heat and cool our homes that doesn’t entail oil.

You see, close beneath the earth’s crust – no more than 33,000 feet under our feet – is a stratum of magma. This is a molten and semi-molten blend, for the most part comprised of silicates, in which temperatures vary from 1300 degrees Fahrenheit to 2400 degrees Fahrenheit and hotter the deeper you go (not that you’d want to go there!). What this serves to do is keep the ground immediately under the earth’s surface at a reasonably stable year-round temperature of between 45 and 75 degrees Fahrenheit. Meaning? Underground temperatures in New Jersey (and essentially everywhere stateside, anyway) are warmer than the ambient air above ground in Winter and cooler than the ambient air above ground in Summer.

Time to Get Pumped!

The task, then, of a geothermal heating and cooling system is to|Underground temperatures being what they are, then, it’s the purpose of a geothermal heating and cooling system to transfer heat from the ground  to your home or heat from your home to the ground, as the season dictates. Either way, your home environment is maintained at an optimal temperature to keep you and your family in comfort year-round.

The apparatus that effects the transfer is a geothermal heat pump. It continuously circulates water or some mixture (predominantly antifreeze) between your home and loops of pipe (predominantly fabricated of polyethylene, high-density polyethylene, PVC, or CPVC) installed in the ground. In Winter, the liquid is cold when it enters the ground. As it courses through the loops, it takes in heat from the earth and is returned to your home warm. In Summer, the process is reversed: warm liquid goes into the loops, where it absorbs the cooler ground temperatures before it’s returned to your home. Want details? You’ll find more thorough information on ground loops here.

The central point is that geothermal heating and cooling systems don’t produce energy. They aren’t like central heating systems, which generate heat themselves. Instead, geothermal systems heat and cool your home by putting to use the energy already amply available beneath the earth’s surface. That’s why geothermal systems not only run quieter but also are considerably more dependable, need less maintenance, have much longer lifespans, and are more environmentally friendly than standard HVACs. That’s also why, in the end, you’ll save appreciably more more money by going geothermal.

Curious now? Consult with J. Zanes LLC, your New Jersey geothermal heating and cooling specialist, today.