Grayling Geothermal Heating & Cooling Contractor In Grayling, Michigan, the geothermal heating and cooling contractor to call is Kalkaska Pumbing & Heating Inc.. Our geothermal knowledge is second to none. And we provide the best products on the market in Grayling - or anywhere else, for that matter: WaterFurnace geothermal heating and cooling systems! Take a look at our Geothermal Savings Calculator. It'll tell you why so many homeowners are going geothermal. The monthly savings are big! We can give you plenty of other good reasons, too. And when you’re ready install? We'll see to it that your WaterFurnace geothermal heating and cooling system is installed - and serviced – correctly! Contact Kalkaska Pumbing & Heating Inc. today.