I am concerned about energy efficiency. Does the flap seal reasonably well, or can air get through easily?
1913233
My experience is with the extra large door (weather extreme). I have three dogs (110 LBS EA) and they use the door all day everyday! In my case the flaps do get worn or pushed to one side and it will create a gap. This is fixable by adjusting the small screws at top of flaps. The flaps DO create a decent seal so I guess it will depend on the amount of use the door gets. Hope this info helps!!
1913234
There are 3 flaps, so this one is probably the most energy efficient of all pet doors. I am sure some air escapes both ways, but we really couldn't notice it. The benefits far outweigh any air that may come in or go out. Our dogs love having the freedom to go out and play or use the bathroom when they want to.
1209983
Flap is as good as it gets. The gap between the pet door and the existing door need to be sealed carefully with the supplied molding and you will be pretty pleased.
1558377
I"m with GoJoe with his answer. Air passes through from the back. I have used this unit for two years in my wife's green house and has performed perfect.
628256
No, but it does have sort of a jam that catches the flap to basically serve that purpose. Keep it from just blowing open. There's a cover that can used as well.
1252266
the seal on these is pretty basic, but you could buff up the seal with caulk or tape. it definitely isn't as awkward as a window unit.
551393
Hi. The door seals tight, but there is a convenient chimney hole in the top center, about 1 inch diameter, where I always run my temp probe wire. Works great.
1371719
Yes it is easy to close. It closes very smoothly and won't leave gaps either.
1924929
It is weatherproof if installed properly. Don't know about efficiency, but it is better than the push-open we replaced as the wind would blow it open.
468327
There is some air that gets through but overall, it's pretty good. The seal between the two pieces is adequate if you install it properly. The lower piece's seal to the vehicle is pretty good as well. Overall good investment compared to more expensive windshields I looked at. I recommend the Seizmik soft top which covers the rear of the passenger area for the draft problem. The soft cover has cut-outs for the windshield too.
1338800
When closed It blocks most of the air-flow. While the "flap" closes pretty tightly, there are still some small gaps.
601712
I believe some older models didn't have the zipper under the flap. Ours has the zipper under the flap, and we did not have any leakage. Also, if you don't follow the directions and put items with sharp corners along the outside walls, this can cause rips. Also, be sure to stuff it full. Leaving extra space causes wind damage.
1475161
I've had minimal leakage. Very minimal. Has only happened a few times but as long as I close it all the way it seems to be fine.
1050048
Airflow is fine, I can cool a high end GPU (GTX680) and OC my i7 to 4.4Ghz if I want and it keeps temperatures acceptable. The door was well thought out, and there is enough space not to limit the fan. The only thing of note is that, one of the openings of the door is more "open" then the other for air flow. That "open" end you will want to face away from where you are sitting, or else the noise you perceive from sitting at the desk will go up.
1252269
I never had problems with bugs coming in. It's not an air tight seal, but they way vents to the window you can leave the screen on, so no bugs when I used it. In fact the way it connects to the window for venting was the one thing I didn't have a problem with.
598197
Once done blowing up close the flap and push it in so its flush. If air is leaking there may be a break in a seam I think mine are fine but defects cab happen. Hope this helps.
1838274
It is a solid closure, but I would not say airtight... technically speaking.
1065239
This item didn't close well for me. I have returned it. I'm not sure about what flap you are referring to.