Chisago City, Wisconsin, Geothermal Heating & Cooling We're getting the word out in Chisago City, Wisconsin: in in the condition the economy is in today, geothermal heating and cooling is absolutely the right choice! Soil conditions in Chisago City are just right. And our seasonal temperatures? They change enough in highs and lows to almost guarantee that geothermal heating and cooling will provide the best year-round satisfaction. You'll also enjoy how much a geothermal system can cut your energy costs, too. The proof? Our Geothermal Savings Calculator. Contact Comfort By Design, Inc. today. We've got a lot more to discuss with you about the advantages of geothermal heating and cooling in Chisago City. Another great thing, we install and service WaterFurnace geothermal systems, the finest on the market.