Dear all:
Just a quick question wish you could help. We are living in a very old house (1930's) which has a old wooden door that has a 5" x 8" (outside rim: 7" x 12") viewing windows (or maybe I should say "door")... This viewing "window" is quite old and is not sealed very well, so when we turn on the heater, the warm air will escape from this viewing window - not really energy-smart. As I just had a good luck ordering a hard-to-find window part from a online store, I wonder if there is also an online store that sell this kind of part, and if so, where could I find it? And what is the official name of this type of part?? Many thanks!
Here you could see some photos of this "door" that I'm talking about...
Thanks!