Ross County, Ohio, Geothermal Heating & Cooling We're spreading the word throughout Ross County, Ohio: in today's economy, geothermal heating and cooling is definitely the right choice! Soil conditions in Ross County are perfect. And our seasonal temperatures? They fluctuate enough in highs and lows to practically guarantee that geothermal heating and cooling will give you the best year-round satisfaction. You'll also enjoy how much a geothermal system can decrease your energy costs, too. The proof? Our Geothermal Savings Calculator. Contact Fairfield Heating & Cooling today. We've got quite a bit more to tell you about the benefits of geothermal heating and cooling in Ross County. Best of all, we install and service WaterFurnace geothermal systems, the best on the market.