Jul 18 2014

When it comes to your heating and cooling bills, energy efficiency is the key to holding onto more of your hard-earned money. The less energy that your HVAC systems consume, the greater your savings. High efficiency HVAC products also offer you a great way to conserve energy and help protect the environment. If you’re interested in a green energy HVAC system that puts some extra green in your wallet too, heat pumps provide you with energy-saving solutions. The following information can help you determine which type of heat pump is best for you.

How Do Heat Pumps Work?

Heat pumps rely on the refrigerant cycle to heat and cool your home. Refrigerants are substances that easily transform from a liquid to a gas and back again depending on the amount of pressure that is applied. Refrigerants turn into a hot gas when compressed, into a liquid when condensed and evaporate into a cool gas when the pressure drops. High efficiency heat pumps take advantage of these different refrigeration stages to keep your home comfortable by moving heat in or out of your home according to the season.

What Is Geothermal Heating and Cooling?

Conventional air-source heat pumps are popular HVAC options, but for ultra-high green energy efficiency, it’s hard to beat geothermal heating and cooling systems. Geothermal heat pumps significantly enhance the efficiency of the refrigerant cycle by tapping into the thermal energy trapped beneath the surface of the earth. Geothermal pumps are so efficient that for every unit of energy that they consume, they can move four energy units of heat. Because installation requires burying loops of pipes into the ground, however, the upfront costs are substantially higher for ground-source heat pumps than for conventional models.

How Much Energy Do Heat Pumps Save?

Unlike fuel-burning HVAC systems, heat pumps move heat rather than generate it, and that makes them some of the most energy-efficient heating and air conditioning systems available on the market today:

  • High efficiency air-source heat pumps can cut your heating and cooling costs by 30 to 40 percent or more, according to the Office of Energy Efficiency and Renewable Energy (EERE).
  • Geothermal pumps can lower your air conditioning expenses by up to 50 percent and your heating costs by an astonishing 70 percent.

Both air-source and ground-source heat pumps can keep your home in Hilton Head Island, SC, toasty warm in the winter and comfortably cool in the summer. Determining which type of heat pump offers you the most savings over the long run depends on a number of factors. For example, although geothermal models are more expensive to install than traditional heat pumps, the federal renewable energy tax credit can cover up to 30 percent of your upfront costs. Ground-source pumps offer you a longer service life too. Your trusted HVAC provider can help you compare annual operating costs, installation expenses and expected savings so that you can make an informed decision.

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