How Much Do Old Windows Affect HVAC Energy Costs?
Windows, especially older, single pane windows, make your energy costs sky rocket. They can be responsible for 10-25% of your electric bill by allowing heat to escape in the winter and heat from the sun to enter in the summertime.
The problem with older windows is that the single pane window allow air to pass into the home. With these older windows, there is little to no insulation from the outside temperature level. The exact same can be said for the wooden frame. With time, the wood starts to rot and crack. This allows air to stream through. Ultimately, you are squandering energy throughout the hot summer because your air conditioning unit is trying to stay up to date with all of the cold air that is heading out your windows and the hot air that is can be found in. A similar declaration can be made for the cold winter season, other than this time, it’s the hot air originating from your heater that is getting away from your house.