We removed an air source heat pump yesterday and ended up with a nice hole in our wall above the front door. Now I wonder how you would temporarily cover the hole and how you would permanently fix it? Thanks for your tips! :)

A round hole in a patterned wall where an air source heat pump was removed, showing exposed wall layers. View inside a cylindrical hole in the wall, possibly left from a removed heat pump, showing rough, unfinished edges. A drilled hole in floral wallpaper above a wooden door, where a heat pump was removed. A round hole in a brick wall above a door, left from the removal of a heat pump.
 
Foam sealant makes it airtight.
 
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KnockOnWood
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Stuff in stone wool, a plastic lid on the inside and a do-plåt on the outside, or alternatively a small dab of mortar.
Mostly an aesthetic question of how advanced you want to be, you can, for example, cut out a larger piece from the board on the inside, insert a new piece, and fill and wallpaper. On the outside, the mortar variant is probably the nicest.
On the other hand, it also works with just wool, if you can tolerate seeing it.
 
Fill with insulation, then I would have measured the diameter of the hole and drawn it slightly smaller on a gypsum or particle board.
If possible, I would have screwed some angle brackets on at least 2 sides, then glued or screwed the lid you drew against these, then it's just a matter of filling the seam.
You can also just screw in some pieces of wood as long as you have something that prevents the lid from falling into the hole.
Honestly, I don't have a good suggestion for the outside.
 
roland53 said:
Foam is a nuisance if you need to remove it at a later stage-...
?

Isn't there anything easier than picking off some PU foam?
Additionally, it becomes air and water-tight, and does not attract moisture.
 
When I patched a similar hole, I screwed wooden strips on the inside of the board on both sides. Then I filled the hole with expanding foam and screwed a piece of drywall to the wooden strips before the foam had fully expanded. The foam will glue to the piece of drywall so that it sits firmly. Once it has cured, you can putty over the seam and paint or wallpaper over it. The exterior is more work to make it look nice. Perhaps you can find some metal cover that doesn't spoil the facade.
 
A fresh air vent?
 
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twoody and 1 other
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We filled the hole with mineral wool, patched the vapor barrier with plastic, and used a hole saw to cut a gypsum plug for the inside and a facade board plug for the outside.

The outside will be more difficult for you though...
 
Insulate with rock wool, buy a lightweight concrete block type 20mm thick, cut to size and attach with plaster on the inside.
On the outside, I would have bought a similar brick as the facade has, cut/chipped it as neatly as possible.
Or chipped away the bricks and replaced with new ones.
 
kulle
An outdoor lamp over the hole
 
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Fotografen
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And maybe it was time to redecorate the interior after all :o
 
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Christian Ek and 3 others
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