W. H. Demmons, Inc. has been involved in Geothermal Projects since 1992 when we did our first project at Catholic Charities in downtown Portland. This first project was a three-story 22,000 sq. ft building that serves as a community center, offering counseling, offices, a library, activity spaces, and a full commercial kitchen and dining area.

This project, like many of our designs, is known for its efficient use of energy ( e.g. this building's energy costs were 40% that of similar buildings ), through the installation of its "state of the art HVAC system" and its superior IAQ (Indoor Air Quality). It is still in service today and maintained by our HVAC Maine Air Service division.

Since our first geothermal design in 1992, W.H. Demmons Inc. has been one of the leading Geothermal Design Build Contractors in New England, and the leader in Maine.

Our team, lead by Douglas Martin, P.E., has been involved in numerous geothermal projects in Maine totaling more than 250,000 ft 2 including office buildings, inns, banks, classrooms, lecture halls, as well as the Maine Audubon Society building in Falmouth

How Geothermal Systems Work

Geothermal systems use the near constant ground temperatures created by solar radiation and moves that heat from one place to another. This utilization of the earth's natural resources produces a heating and cooling system that is three times more efficient than conventional systems and more cost effective. A geothermal system can reduce your energy costs by 50%.

View a more complete explanation of geothermal systems

Benefits To Geothermal Heating and Cooling System

	Three times more efficient than conventional systems
	Reduce energy costs
	Maintains even temperature and humidity
	No open flame
	No outdoor equipment reduces maintenance costs
	No outdoor equipment provides unobstructed views
	Increases resale value of your home or business
	Environmentally friendly - uses the renewable energy of the earth