Check this out. :)
How To Insulate a Pet Door Flap | DoItYourself.com
https://www.doityourself.com/stry/how-to-insulate-a-pet-door-flap
https://www.youtube.com/watch?v=Bgn3R_RCtsU
Here is some advice on that https://grist.org/living/your-doggie-door-is-probably-wasting-energy-but-you-can-fix-that/
We seem to have some unwelcome Mickeys and Minnies in our house. What is the best way to get rid of them?
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I have a rather large pet safe dog door which is part of my slider. I would like to inquire if anyone has any ideas as to how I can effectively insulate this without ... See more
Check this out. :)
How To Insulate a Pet Door Flap | DoItYourself.com
https://www.doityourself.com/stry/how-to-insulate-a-pet-door-flap
https://www.youtube.com/watch?v=Bgn3R_RCtsU
Here is some advice on that https://grist.org/living/your-doggie-door-is-probably-wasting-energy-but-you-can-fix-that/