How To Seal Window Ac Unit

Most window air conditioners come with an accordion style flap attached to the sides to fill the open space.

How to seal window ac unit. Narrow or hard to reach gaps measure the length of gaps that are 1 8 inch thick or smaller. If you don t feel like removing a whole ac unit and sealing off the window the other good option is to seal a window air conditioner for the winter. How to seal an air conditioner window gap. Then lift the window and place the seal under the lip of the window.

It provides an easy to paint surface once the job is done which helps to hide unsightly marks on the wall s surface. Smooth the caulk and wipe away. Re close the window tightly. Even extremely small gaps can leak air which reduces the efficiency of your air conditioner.

Press the caulk into the gap. How to seal the outside of a window air conditioner that is mounted in a double paned window 1. Continue reading below our video of the day. If the gap is deep you may need to press two pieces into the gap to fill it completely.

Cut the seal if necessary to fit your window and. Ask a helper to hold the air conditioner unit in place while you raise the bottom window sash up enough so that you. So typically when you install a window air conditioner you have the window the upper part of the double hung window sits on top of the box and then it has sort of like wings that slide out the side of the air conditioner to kind of seal out the space between the air conditioner and the opening of the window correct. Once the upper pane is secured there will be a gap between the two panes of the window.

Choose easy to use acrylic latex caulk when fixing a window air conditioner. Most window air conditioners have an expanding curtain on either side to help seal any gaps between the window frame and the air conditioner but sometimes this seal isn t perfect. Fill that gap with the foam seal included with the unit. To fix this purchase some air conditioner foam seal at your local hardware store if there isn t any with your unit.

This type of caulk is beneficial as it seals gaps where moisture can penetrate and cause damage to the wall. Tear off a length of rope caulk to match.