Not for use with a gas fire!

A chimneys function is to draw air up and out of a building, you can spend a fortune insulating your loft and installing double glazing  but if you leave a disused chimney open you will lose a lot of expensive warm air.

But rest assured your chimney sweep has a low tech solution.

Pigeon on chimney pot "mmm free heat"

There is a way of foiling these pesky freeloaders.

Step 1

First, to avoid future problems have the chimney swept.

If there is a history of nesting consider having an anti bird cowl fitted.

Step 2

After sweeping, loose fill a bin liner with newspaper. No need to scrunch it.

Step 3

This is about the standard size. Close the bag with a few twists.

Step 4

Seal the bag with tape or string leave a length dangling.This is to mark that the flue has been plugged.

Step 5

Tear a small hole in the bag.This is to make it easier to insert the bag into the flue.

Step 6

Insert the bag into the chimney.You may have to use a broom handle to push it firmly into the flue.

Step 7

Make sure the dangle is visible (you may need to tether it) just in case you forget the bags there and you try to light a fire.

If  the fire is to be used  remove the bag the night before, if not you may need to warm the flue.

Always leave a gas fire flue permanently open!