Sterling Looks to Us for Geothermal Heating & Cooling! We're Comfort By Nature. And we're distinguished throughout Sterling, Colorado, for our geothermal heating and cooling knowledge. People turn to us for ... superior geothermal system installation and service qualified, highly trained personnel who know every detail of geothermal heating and cooling - and know how to help you understand geothermal systems from one of the industry's most established names - WaterFurnace advice on how to maximize the potential from their geothermal heating and cooling installation Of course, a big reason people turn to us in the first place is for the savings they can appreciate on their energy bills with a geothermal system. Want a preview? Give our Geothermal Savings Calculator a go. Then push forward with the next step and contact Comfort By Nature. We'll show you more of what makes geothermal systems the best choice for year-round heating and cooling comfort in Sterling.