Delta Geothermal Heating & Cooling Contractor In Delta, Colorado, the geothermal heating and cooling contractor to call is WaterFurnace . Our geothermal proficiency is second to none. And we offer the finest products available in Delta - or anywhere else, for that matter: WaterFurnace geothermal heating and cooling systems! Try our Geothermal Savings Calculator. It'll show you why so many homeowners are going geothermal. The monthly savings are huge! We can tell 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 – right! Contact WaterFurnace today.