Decatur County, Indiana, Geothermal Heating & Cooling We're spreading the word throughout Decatur County, Indiana: in today's economy, geothermal heating and cooling is absolutely the right choice! Ground conditions in Decatur County are perfect. And our seasonal temperatures? They vary enough in extremes to almost guarantee that geothermal heating and cooling will provide the best year-round satisfaction. You'll love how much a geothermal system can reduce your energy costs, too. The proof? Our Geothermal Savings Calculator. Contact Wallpe Heating & Cooling today. We've got a lot more to discuss with you about the benefits of geothermal heating and cooling in Decatur County. Another great thing, we install and service WaterFurnace geothermal systems, the best on the market.