What to do after upgrading to central air
Do you repair the siding where the wall units were or do you leave them there and box them in with insulation inside the house "Just in case you have a problem with the new AC sometime in the future?"
The outside of the house will need more attention then the inside if you are taking them out because sheet-rock inside is just easier to fix then whatever type siding you might have that you'll need to match outside.
If it's time to get all new siding, that issue is taken care of but why even take the wall units out? If that time comes when you can't use that new AC system, and yesterday it did come to Staten Island with a power outage, the old wall units may very well come in handy once partial power is restored. My thermostat reports "system malfunction call technician" so I called my brand AC and they said it should work after full power is restored, in the meantime I'm using all three of my old wall units.
I'm glad I left my old units in.
What's your opinion on taking those old units out?