We're the Geothermal Experts in Kewanna! At Gast Heating & Cooling Inc., we specialize in WaterFurnace geothermal heating and cooling systems. Kewanna residents know we offer... the best geothermal systems on the market today top-quality geothermal installation and maintenance the kind of support that helps them recognize the full comfort and energy-savings expected from a geothermal system (Our Geothermal Savings Calculator will suggest potential monetary savings. We think you like what you see!) In Kewanna, Indiana, we're by far the best the geothermal heating and cooling contractor to call. Contact Gast Heating & Cooling Inc. today.