How do these seal from the outside air when not in use?
1882636
Hi, if you are just replacing an old one with this, the venting system is already in place in your house. You don't have to do anything with that. We like ours a lot.
1737681
It needs to be in OR past the zone and will seal fine. These things are fantastic.
555190
These have a vacuum seal in the inside, so it doesn't loose the vacuum while you are closing it...
829292
Use a vacuum. The air leaks out making them pretty worthless, though they do keep dust off.
2013551
Not like an airtight or waterproof seal. But I am very happy with them for just storage.
411364
You seal them with silicone before install. I had no issues with condensation.
1737682
Mine don't either. I just screw them on tight and they don't leak--seal zone or not.
268254
Yes these are sealed at the floor hooks. I've had a large amount of water in these due to melting snow and never had a leak or spill over the lip which is pretty deep. They are also extremely easy to pull out and clean with a hose to like new condition in about 30 seconds.
1363407
They are the regular type that you press down for an air-tight seal. No wings here :)
892734
They are tightly twisted off at both ends but not sealed . I hope this answer helps you.
20939
I installed myself and was careful to seal and caulk liberally. There are no drafts of hot or cold air, even when it was below zero in the winter and above 90 in the summer. There are also no leaks, although on a rare occasion I have noticed some condensation on the lens if my wife takes a long hot steamy bath, (one of my skylights is in a bathroom). The other skylights have not shown condensation.
157697
My answer is to find the best permanent place for the outside unit. It's always best to leave the sealed system connected unless there is no option except to move it. And, I agree with other answers. The unit is designed for lubrication of the compressor to be in its upright position.
1737680
Mine never have probably never will. I just screw them on tight and ignore the seal zone. I like these ones because they don't leak as much as others I have tried
2077452
The key to getting a good seal is if the bag is not filled completely. I just squeeze the air out and roll the top over a couple of times and I get a perfectly dry seal every time.
1161940
I also use them in a safe. The reason for the heat sealing is to keep the rest of the packets from absorbing moisture from the air until you use them. I keep mine in a good sealed zip lock bag and make sure I get the air out of it. so far no problems. Hope this helps
1560666
There is a rubber seal on the inside of the plastic lid. Some of them still leak. I certainly would not call them airtight.
1696974
There is a plastic piece inside that floats up and down with air pressure from the dryer to seal out outside air. If this vent closure is turned 90 degrees this vent closure will not work as designed.