Since 1992, AEPCOR-Geothermal has assisted homeowners in the sizing and design of their geothermal systems. AEPCOR has also provided contractors with products and design plans for residential and light commercial geothermal systems. We are now expanding our offerings to the high efficiency gas and air to air heat pump systems as well. Homeowners and contractors depend upon AEPCOR for its experience in design and sizing of the entire geothermal, gas or air to air heat pump systems. This includes matching all components and equipment with the heat loss and heat gain of your home or building.