Vented Windows

 My husband and I recently drove through the town of Forest, which is a lovely place with a neat variety of architecture and a great Foodland. Like a lot of typical towns in Ontario, it has an astonishing number of churches, and we noticed that two of them, St. James and Christ Church, both have storm windows over their stained glass. But these are like no others we've seen---they have little metal vents inserted in top and bottom to keep the heat from building up between the storm window and the stained glass.

I came home and emailed both churches and heard back from St. James. They provided the name and info for the company that created the storm windows for them. We're going to check them out and see if their quote is any cheaper than the quote we've already received. Our idea was to vent the stained glass windows into the interior, but if we can vent to the outside, it would save us a lot of work repositioning the stained glass. However, it would not address the thermal issue. Cold air would leak through the vents and the stained glass. Then I had the idea of doing interior storm windows as well (where there is more space), vented to the inside. So you'd have three layers of glass separated by air, which would improve the thermal quality. But double the cost.

Sigh. Still no solution. But I feel we're getting closer, and now we may have an experienced company to work with.