Dog door warmer than wall!

Just wanted to drop a note to say we LOVE our RANGER (Formerly Freedom Pet Pass) door – we installed it in June 2011 and it is still going strong. Absolutely love it. We’ve actually got a piece of foamboard insulation that we put in the opening at night instead of the locking door, which makes it warmer than the wall it’s in. Go figure. Thank you so much and best regards.