Cooling & Heating Cycles


Your geothermal heating and cooling system will work in a predictable way throughout the year to efficiently heat and cool your home. Read below to learn more about the different types of loop systems and how the heating and cooling cycles of your unit will operate.

  • Heating Cycle

    During the heating cycle, the water-based solution circulates through the loop, extracting heat from the ground. The heat energy is transferred to the geothermal unit. The unit condenses the extracted heat to a high temperature and delivers it to your home through a normal duct system.

  • Cooling Cycle

    For cooling, the above process is basically reversed. The earth is much cooler than the air temperatures on a hot day, so the geothermal system removes heat from the home and transfers it into the ground. The liquid is cooled by the temperatures underground and returned to the unit for cooling your home.

Well Drilling Charleston, SC
  • Geothermal Loops

    The loop system is the most integral part of geothermal technology. Regardless of the type of system you select, it will deliver over 300% efficient comfort and savings for years to come. Pure Water Drillers, Inc. will help you select the proper loop system based on a site survey and an energy analysis of your home.

  • Vertical Loop System

    This type of loop system is used mainly when land area is limited and in retrofit applications for existing homes. A drilling rig is used to bore holes at a depth of approximately 150 to 200 feet. A U-shaped coil of high density pipe is inserted into the bore hole. The holes are then backfilled with a sealing solution.

  • Horizontal Loop System

    This is the most common loop used when sufficient land area is available. Excavation equipment such as chain trenchers, backhoes and track hoes is used to dig trenches approximately 6 to 8 feet deep. Trench lengths range from 100 to 300 feet, depending on the loop design and application.

  • Pond Loop System

    A pond loop is an option if a large body of water is available within approximately 200 feet of the home. A 1/2 acre, 8 to 10 foot deep body of water is usually adequate to support the average home. The system uses coils of pipe typically 300 to 500 feet in length. The coils are anchored at the bottom of the body of water.

  • Open Loop System

    An open loop system can be installed if an abundant supply of high quality well water is available. A typical home will require 4 to 8 gallons of water per minute. A proper discharge area such as a drainage ditch, pond, river or lake must be present. Local codes may restrict this option from being available.

For further informaton about cooling & heating cycles, please call Pure Water Drillers Inc. located in Charleston, SC today.