Nampa, Idaho, Geothermal Heating & Cooling We're getting the word out in Nampa, Idaho: in in the condition the economy is in today, geothermal heating and cooling is definitely the smart way to go! Ground conditions in Nampa are perfect. And our seasonal temperatures? They change enough in highs and lows to virtually guarantee that geothermal heating and cooling will give you the best year-round comfort. You'll love how much a geothermal system can decrease your energy expenses, too. The proof? Take a look at our Geothermal Savings Calculator. Contact Idaho Geothermal, LLC today. We've got quite a bit more to tell you about the advantages of geothermal heating and cooling in Nampa. Best of all, we install and service WaterFurnace geothermal systems, the best on the market.