Geothermal Heating & Cooling
Efficient Heating and Cooling from the Ground Up
Geothermal systems use the stable temperature beneath the earth’s surface to heat your home in winter and cool it in summer. MacDonald Heating & Cooling provides geothermal heating and cooling solutions for homes in Great Falls and the surrounding area.

HOW GEOTHERMAL WORKS
One system for year-round home comfort
Geothermal heating and cooling uses energy stored just below the earth’s surface. During winter, the system transfers heat from the ground into your home. During summer, it removes heat from the home and returns it to the ground.
The system includes an indoor geothermal unit and a loop of high-density polyethylene pipe buried underground. Because the temperature below the surface remains more stable than the outdoor air, the system can provide dependable heating and cooling through Montana’s changing seasons.
The system includes an indoor geothermal unit and a loop of high-density polyethylene pipe buried underground. Because the temperature below the surface remains more stable than the outdoor air, the system can provide dependable heating and cooling through Montana’s changing seasons.

Ground Loop
A buried loop circulates fluid through the ground, where temperatures remain more stable than the outdoor air.

Heat Transfer
The geothermal unit transfers heat between the underground loop and your home, depending on the season.

Comfortable Air
Your existing ductwork or distribution system delivers consistent heating or cooling throughout the home.
BENEFITS OF GEOTHERMAL
Why Great Falls homeowners should consider geothermal?
A geothermal system can provide heating, cooling and added indoor comfort from one system. Because much of the equipment is installed indoors or underground, it is protected from harsh outdoor conditions and operates without a conventional outdoor air-conditioning unit.
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