Fort Dodge, Iowa, Geothermal Heating & Cooling We're spreading the word throughout Fort Dodge, Iowa: in today's economy, geothermal heating and cooling is definitely the right choice! Soil conditions in Fort Dodge are perfect. And our seasonal temperatures? They change enough in highs and lows to almost guarantee that geothermal heating and cooling will offer the best year-round satisfaction. You'll also enjoy how much a geothermal system can reduce your energy expenses, too. The proof? Our Geothermal Savings Calculator. Contact Sherman Co. LLC today. We've got a lot more to discuss with you about the benefits of geothermal heating and cooling in Fort Dodge. Another great thing, we install and service WaterFurnace geothermal systems, the best on the market.