low-e glass replacement

https://wiki-spirit.win/index.php/When_to_Consider_Insulated_Glass_Unit_Replacement_for_Your_Home

I had to replace a few panes of low-e glass in my old windows last winter because the coating had worn off on the south-facing side, causing condensation and higher heating bills. The new panes are clearer and definitely help keep the house warmer without that weird haze the old ones got. It was a hassle to find a glazier who stocked the right thickness, but now the windows look great and the rooms feel less drafty.