Zone 5a - Marvin LoE 272 or LoE 366
I've been reading many threads on this forum about when it's better to use LoE 272 or LoE 366 glass, but the threads were about homes in Atlanta, Utah, California or the Southeast. I am in suburban Chicago, zone 5a. As the saying goes, "Chicago has two seasons, freezing cold and boiling hot".
I am replacing 5 windows in a 3rd floor (top floor) bedroom which faces SE. I will be getting Marvin Clad Ultimates. I got a few bids, and they all defaulted to the LoE 272 glass. Except one contractor, who said I would be better off with LoE 366. The price difference is not much between the two types of glass. Because this bedroom faces SE, it does get very warm on sunny days, but at the same time, the windows fill the entire wall so that at night it can be very cold.
In an older thread Skydawggy said "IMO 366 glass should only be used in a cooling dominated climate such as Texas, Florida etc." So should I tell the contractor who said I should get 366 glass, that I am going to go with 272, or should I be choosing the 366?
This post was edited by Mrs_Nyefnyef on Fri, Sep 27, 13 at 16:45