North Geothermal Heating & Cooling Contractor In North, Nebraska, the geothermal heating and cooling contractor to call is Wadas Inc.. Our geothermal expertise is second to none. And we offer the best products available in North - or anywhere else, for that matter: WaterFurnace geothermal heating and cooling systems! Try our Geothermal Savings Calculator. It'll show you the best reason for 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 make sure that your WaterFurnace geothermal heating and cooling system is installed - and serviced – right! Contact Wadas Inc. today.