We're the Geothermal Source in Markle! Markle homeowners in the know look to Huntington Heating & Cooling Inc. for all their geothermal heating and cooling needs. They count on us to give not only the proper installation and service but also the experience to help them get the most from their geothermal systems. Thinking about a geothermal system of your own? Give our nifty little Geothermal Savings Calculator a try. Just load it with your data and marvel at the results. Then, contact us, the Markle, Indiana, geothermal experts at Huntington Heating & Cooling Inc..