[magicalhippo]

We have the same in the windows we replaced in our living room. We took the least visible (and hence least IR blocking) option, which reduces transmitted IR with 60%. The coating went up to 90% IIRC though at that point it was a very visible blue. Ours has just a slight blue-green tint.

The difference this summer has been striking. In our bedrooms which are on the second floor, the sun feels hot through the windows. In the living room I can barely feel it.

We're up north so our home is well insulated, hence the summer sun tended to overheat the inside.

[mrtksn]

It's amazing isn't it? How was the winter with the filters on, if you have been through the winter of course?

[magicalhippo]

Not a full winter, but got most of last (installing living room windows in -15C is interesting). While of course it also reduces sun heat during winter, the sun is low enough during the winter that we only get maybe a couple of hours at best per day of sun. Given that most of the winter is cloudy or overcast to some degree anyway, we didn't notice the little heat we missed due to the IR film.

On the flip side, the glass we replaced was some 20+ year old two layer glass while the new were thick 3 layer stuff. They're vastly better insulating (heat and sound), so that alone was a huge plus compared to the old.