Parker Looks to Us for Its Geothermal Needs We’re Sensible Heating & Cooling, the recognized "go-to" team for Parker, Colorado's geothermal heating and cooling. Parker homeowners are turning to us for ... the best WaterFurnace geothermal heating and cooling systems the best installation and service from highly skilled, highly trained professionals professional advice on how to get more out of their geothermal installations With the economy like it is, there's never been a better time to put a WaterFurnace geothermal system to work for you. And we're the experts to do it in Parker, Colorado. Contact Sensible Heating & Cooling today. Want to see just how big "going geothermal" could save you on your energy bills? Take a moment or two with our easy Geothermal Savings Calculator.