Massillon, Ohio, Geothermal Heating & Cooling We're getting the word out in Massillon, Ohio: in in the condition the economy is in today, geothermal heating and cooling is absolutely the right choice! Soil conditions in Massillon are just right. And our seasonal temperatures? They fluctuate enough in highs and lows to practically guarantee that geothermal heating and cooling will offer the best year-round satisfaction. You'll love how much a geothermal system can cut your energy expenses, too. The proof? Take a look at our Geothermal Savings Calculator. Contact Sisler Heating & Cooling, Inc. today. We've got quite a bit more to tell you about the advantages of geothermal heating and cooling in Massillon. Another great thing, we install and service WaterFurnace geothermal systems, the best on the market.