Love's Geothermal - Love's Heating & Air

Love's Heating & Air, Inc
Severn, Maryland
410-551-1376

What is Geothermal?   •   Why Go Green?   •   Diary of a Geothermal Installation

  

  

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What is a Geothermal Heat Pump?

A Geothermal Heat pump is an electrically powered system that taps the stored energy from the earth. These systems are Energy Efficient, Cost Effective, Reliable, Quiet, Safe, Clean, and Environmentally Friendly. Geothermal heat pumps use the earth’s constant temperature to provide heating, cooling, and hot water for homes and commercial buildings. Geothermal heat pumps are durable and require little maintenance, and they last up to 25 years or more.

Open LoopThere are two types of loops that Geothermal heat pumps. The first is an Open loop. An Open loop system can be installed where an adequate supply of suitable water is available and an open discharge is feasible. Sometimes they require two or three more wells to discharge water back into the ground. An open loop can be problematic because of the extra maintenance it requires.

The second type of Geothermal heat pumps is a Closed loop.

Vertical Closed LoopHorizontal Closed LoopPond Closed LoopClosed loop systems contain water and antifreeze.  Love's Heating & Air, Inc uses and recommends Environal antifreeze, because of its non-toxicity.  Polyethylene pipes are buried beneath the earth’s surface either horizontally or vertically.  During the winter, the fluids in the pipes collect heat from the earth and carry it through the system and into the home. In the summer, the system reverses itself to cool the home by pulling heat from the home and carrying it through the system and placing it in the ground. All Closed loop geothermal systems use water and should have a freeze protection (antifreeze) of -17°C/ 15°F.

Many residential systems are now equipped with desuperheaters that transfer excess heat from the geothermal heat pump's compressor to the house's hot water tank - supplying up to 75% of a home's hot water needs. In addition to heating and cooling your home, this process creates free hot water year around and delivers substantial hot water savings. (50% to 75%). Many residential systems are now equipped with desuperheaters that transfer excess heat from the geothermal heat pump's compressor to the house's hot water tank. A geothermal heat pump doesn't supply 100% of a homeowner's hot water needs, because the desuperheater provides less hot water during the spring and fall when the geothermal heat pump system is not operating as often.

Geothermal heat pumps can save homeowners 30% to 70% on heating and 20% to 50% on cooling cost over conventional systems.Geothermal heat pumps are relatively new technology that can save homeowners money. They offer high efficiency and low operating cost. According to the EPA (Environmental Protection Agency) Geothermal heat pumps can save homeowners 30% to 70% on heating and 20% to 50% on cooling cost over conventional systems.

Water stores tremendous quantities of heat. Air on the other hand, has a very low specific heat. There is 3472 times more heat stored in a cubic foot of water as is stored in a cubic foot of air. In other words, it would be necessary to move 3472 cubic feet of air through a heat exchanger in an air-to-air heat pump in order to expose that heat exchanger to the same quantity of heat store into one cubic foot of water.  One cubic foot of water contains 7 ˝ gallons.

Geothermal heat pumps are very reliable and safe. Since there is no natural gas, propane, or oil, there is no risk for combustion of fumes or flames. Also, there is no risk for carbon-monoxide poisoning. Geothermal systems also last twice as long. Given that it is easier to transfer energy through water than it is through air, geothermal systems don't have to work as hard - which means less wear and tear.

The ground absorbs about 47% of the sun’s energy that reaches the earth. Geothermal heat pump systems harness that free, renewable energy and provide an environmentally friendly way to heat and cool your home. Installing a Geothermal heat pump system is the environmental equivalent of planting 750 trees or removing 2 cars from the road. The geothermal heat pump system does not burn fossil fuels, which means no emissions or harmful greenhouse gases are released into the air.

     

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