This is the time of year when some of us dread receiving our energy bill. One way to reduce that monthly bill is to have a good look at your windows. One of the least energy efficient types of window is the single pane window because of its low insulating value. What should you look for when considering new windows? Upgrade to double pane windows that have a Low E glass coating, known as Low-Emissivity, High-Transmittance. Low E glass coating reduces heat loss in the winter, and reflects the re-radiated long wave energy from outside sources in the summer, keeping the house cooler. Inert gasses like argon, which are heavier than air can provide additional insulation. Also pay attention to the spacer material. If an aluminum spacer is used, it is very conductive and can transfer heat to the outside. Consult your professional remodeler for the best choice of windows for your home.