New Const. Townhome - Low Emissivity Windows?
We're purchasing a new townhome (Western burbs of Chicago) and one of the options that we could get are the Low Emissivity and Argon Gas-filled windows throughout the home. Of course, the salespeople were saying how it could save me in heating and AC costs, I was wondering if this was true or just some sort of marketing gimmick. I don't really understand the values and what they actually mean though. Can anyone shed any light into this and whether or not the upgrade would actually save me money by helping me keep the house warm in winter and cool in the summer? The townhome we are purchasing is an end unit with windows on the North, East and West sides of the unit.