A properly designed and installed insulation system immediately reduces the need for the furnace to use more energy and results in significant savings.
You should have insulation in your walls, under your flooring, and in your attic.
You can even have insulation around your pipes. Insulation is required inside all newly manufactured hot water heaters, too. For a long time, water heaters were known as one of the biggest wasters of energy – and money! Those who wanted to save money were encouraged to turn off their water heaters when not home, and water heater timers were sold all over the place. Now, though, water heaters are not the big consumers of energy they once were. But you still need to have good insulation. Pipes that lead to and from your water heater should have insulation wrapped around them. Your attic should be insulated if it isn’t already, and if you do have insulation, you should check and make sure it is still in good condition. The heater creates a warm environment, but heating rises, and if you don’t have good insulation in your attic, you are going to waste that heated air the heater made for you. Heating and cooling is often one of your biggest monthly expenditures as a homeowner, and whatever you can do to decrease those costs is a good idea. Not only are heating and cooling costs reduced, but you are also helping the environment and reducing your carbon footprint. If you are in the process of building a home, check with your builder to make sure you are able to use every opportunity to reduce your HVAC use once you move in.