I am going to devise a system (eh hem) to insulate my sliding glass door.
Its Big , its single pane and its the largest energy sap in my house.
(all the other windows but 2 small ones are Double Pane)
unless I get better ideas I am going first put a full sheet of 10 mil poly sheet over it , stapled in place over pre cut square plastic washers.
Then i will use finishing nails to tack up a old comforter / blanket , then the original curtains.
I will loose the use of my sliding door so it will be done for the 3 cold months / high heating cost months then removed.
its 28* F (-2*c) right now tonight it will get down to 21*F (-6*c)
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