Wasilla, Alaska, Geothermal Heating & Cooling We're getting the word out in Wasilla, Alaska: in in the condition the economy is in today, geothermal heating and cooling is definitely the right choice! Ground conditions in Wasilla are just right. And our seasonal temperatures? They change enough in extremes to practically guarantee that geothermal heating and cooling will offer the best year-round satisfaction. You'll love how much a geothermal system can decrease your energy costs, too. The proof? Our Geothermal Savings Calculator. Contact Energy Efficiency Associates today. We've got quite a bit more to tell you about the advantages of geothermal heating and cooling in Wasilla. Best of all, we install and service WaterFurnace geothermal systems, the finest on the market.