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We want to (finally) install a pet door for our cat. It will most likely be a model that will install in the laundry room door, the optimal location for it in our house. This brings me to my first issue: The laundry room door in the winter is on the side of the house that gets the most wind and rain. So we need a pet door that the cat can use and won't let in the cold wind and rain in the winter.

What kind of door is best in this situation? Should I go with an electronic model? Where is the optimal position to place the door? What else do I need to know that I didn't ask?

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Do you actually have rain and wind driving right against this door? What are your winter temperatures like? – gregmac Nov 10 '11 at 17:36
@gregmac it never snows here, but the doors on that side of the house are the only ones that had leakage issues in the heavy rains. – CyberSkull Nov 10 '11 at 17:40

Questions you need to answer:

  1. Does your cat fit? we ended up buying a small dog door for our enormous cat.
  2. Can your cat figure out how to go through the door? Ours eventually was able to get through, but would bolt in/out because his tail would get caught otherwise. Some cats never figure out the flap-kind. Try it out in a local store if they'll let you (bring food as encouragement).
  3. Do you mind other cats coming in through the door, too? If you do, you can get some assistance from the proximity-sensing collars, but your cat can still lead other cats inside if s/he wants.

Every cat door is going to leak wind somewhat, except the super high-end powered ones. Rain/snow can be mitigated by building a hood around the exterior of the door if you're handy; I haven't seen a product for this but that doesn't mean it's not out there.

You may be able to get away with simply having an extra doormat on the inside of the door, and keeping the laundry room door closed. Yeah, it'll be colder in there...the price of some extra sleep at night.

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Our cat is average sized. Our previous one was of a naturally larger build so we may have needed a larger door for him. I doubt the leading other cats in will happen with her. The hood is a great idea! Thanks for the other suggestions. – CyberSkull Nov 28 '11 at 14:47

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