Insulating the Mail Slot archived

Get another brass mail slot cover and screw it onto the inside end of the slot. That way, you'll have a double layer of protection from the cold and wind. Did it for mine and it works well.

A piece of polyurethane foam, cut just slightly larger than the mail slot.

If you want to get ambitious, attach it to one of the screws for the slot's backing plate with a piece of light monofilament fishing line.

TomR

They make "no draft" slot cover thingees.

Years ago I got one of these insulated mail slots: http://dhdtvspecialtyhardwarestore.ca/product.php?productid=16180&cat=257&page=1 it's spring loaded and with weather striping.
Needed a little work on the door to make it fit, but worked like a charm once I had it installed.

I have done it two ways for past customers.

1. The cheaper, make a flap out of cloth, provide a weight on the bottom and it worked, kinda ok but better than no thing.

2. I built a box system and mounted it to the inside of the door. The box allowed mail to be inserted thru the door then it dropped into the box. The box was lined with foam insulation sheets and had a door with felt seals. It worked pretty good. I had to go back and remove it and build a new, even bigger one to allow more than a few days of mail, or a Xmas load of mail to fill the box. At the end it looked a little big for me but my customer liked it.

For my house, I move the slot system so that the mail went thru a wall and dropped into a coat closet. I had to build a metal shoot for the thickness of the wall and I installed a flap.

It works pretty well.

Later,
The UPS Store,
George