About Comfort By Nature Northern Colorado's Expert Geothermal Source If you are looking for a company that has a total in-house operation and a documented track record for providing homeowners with all of their WaterFurnace Northern Colorado geothermal heating and cooling needs, you can trust Comfort By Nature. Our complete in-house operation includes... planning assistance. complete comfort system installation. routine service and maintenance. emergency repair. energy-saving advice and consultation. Delivering total customer satisfaction is our utmost priority in the Northern Colorado area, and our fully trained professional staff will see to that.It's difficult not to be satisfied when you pick the best heating and cooling system in the industry today. We will see to it that your new system lives up to all of your demands, helping you to cut your energy costs and improve your home's conditioning efficiency. Contact Comfort By Nature today to get a free estimate and a cost savings analysis for your home.