On a cold day, you can actually stand beside your windows and you can literally feel the heat loss. Poor insulation or seal can cost your hundreds or even thousands of dollars in heating bills. Insulated window blinds can definitely help you save money. Even if you have an old house that is drafty, you can seriously cut down energy loss with insulated window blinds.
Standard window coverings have an insulating value of R-1 which is basically the thermal resistance or how well it holds back heat. You want to find insulated window blinds that have a higher rating than R-1 if at all possible. Another option is to use several layers of window treatment to keep the heat in and the cold out.
Heavier window coverings such as drapes or shades work well in raising the R-value from an R-1 to an R-6. Other insulated window blinds to consider include the new honeycomb or cellular shades. Their structure includes air pockets that provide an excellent layer and can block up to 60% of heat transfer. Now that may be worth looking into.
