Did you know during “furnace season” as much as 50% of your home’s heat is flying right out the window? Thermal windows are great at keeping the cold out but there’s nothing keeping the infra-red heat that your furnace/heating system generates inside your home.
Replacing your current windows with Low-E windows costs tens of thousands of dollars. Low-E film gives you the same performance enhancement at about 15%-20% of the cost. The image was taken with a thermal infra-red camera. The red you see is the heat that was previously escaping.
Low-E film is a retrofit product which can save you 30-50% on your energy costs. You will immediately feel warmer and cosier and can even turn the heat down as your home is retaining a lot more heat.