energy in a person’s yard to provide savings up to 70 percent on heating, cooling and hot water.

“This unit helps build efficiency in our customers’ homes, plain and simple,” Sean said. “We strive to install efficient products that have better life spans to help our customers save money.”

Dan explained that even though there is some apprehension with certain people about changing to a different system, the biggest proponent is to lead by example.

He said, ‘“I tell people about how I got into geothermal. My story isn’t that different from my customers’. We believe in it, we live it, and we use it all the time. We continue to be our own example.”

A diverse heating and cooling company, Advanced Custom Geothermal provides services such as installation and repair of conventional gas and oil furnaces and boilers; conventional, split-system

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and miniduct air conditioners; and air-to-air exchangers, gas fireplaces, humidifiers, duct cleaning, and ultraviolet light air purifiers.

The business also does commercial refrigeration installations and repairs, such as to walk-in coolers and other needs for restaurants, gas stations, taverns and other applications.

But as its name implies, geothermal is the cornerstone of ACG’s business.

“We specialize in it,” Dan said. “We’re the geothermal destination and if you want a system that works, come to us.”

ACG is a member of the Wisconsin Geothermal Association and a member of the Fond du Lac Home Builders Association. ACG has also partnered with Focus on Energy, Energy Star, and is an accredited business by the Better Business Bureau.