Windows are great for letting the sun shine in during the day. The best and cheapest light is sunlight. I think our cat is solar powered. He can always find a sunny spot to sleep.
At night, even the best windows let heat escape. Windows are a big heat loss problem on winter nights. They waste energy even after you have done the storm window thing and weather sealed and caulked.
What more can you do working from the inside to keep the heat in?
At our house, we use window quilts on the coldest nights. My wife makes quilts that we hang or Velcro to the window frame to keep us warm on freezing winter nights.
You can use store bought pre-quilted material. The kind with a layer of reflective plastic vapor barrier works best. Or, you can make your own window quilts so they match the dÃ©cor of your home. They all look good to me when the lights are out. (A tip from the expert; use already bleached fabric on the side that gets the sunshine or the sun will bleach it for you.)
Take the window quilts down in the morning to enjoy the snowy scenery. If you want to sleep in leave them up to muffle the noise of snow blowers and plows. Window quilts work by adding insulation and trapping the air that is next to the glass.
Tight fitting window blinds help by trapping a layer of air at the window.
Heavy full-length curtains help also. In the movies, we see heavy drapes at the castle windows. They were there to keep the cold out not just for show. Heavy floor length drapes add insulation and stop the draft caused by cold air at the window sinking to the floor.
At work, windows help us stay in business during the heating and air conditioning seasons when they are tightly closed. When you see windows that are not completely closed or if there is cracked or broken glass take action to get it fixed.
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