Blinds between glass = less efficient?
I can't find the straight answer--if a patio door has blinds between the glass, does this mean it will be less efficient? Our contractor is talking about a jeld-wen door. Jeld-wen's website says that the normal patio doors are low-e standard, but with blinds inside low-e is optional. I also can't tell if they can fill it with argon if there are blinds. Anyone help?