How To Seal A Window Ac Unit -

If you leave the AC in the window during winter, the steps above are mandatory. However, for winter, you should also consider buying an AC Cover (a heavy fabric cover) to put over the interior of the unit. This stops the cold air radiating off the metal chassis of the AC from cooling your room down.

Best for filling tiny cracks smaller than 1/8 inch. how to seal a window ac unit