I am very happy and surprised at how well Indow Inserts work.
I am using 3 large inserts on original MCM single pane reed glass. I had a thermometer in the area prior to and after installation by Stu Grant Windows. This is winter and I saw a 10°f change in temperature, providing a more comfortable and much quieter atmosphere.
I also don't have to deal with the moisture issues and there is little to no condemnation on the coldest days.
These are high quality and worth every penny because I am already saving on heating.
Thank you Indow.
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