The contractor who's converting my 24 x 40 attic to office space suggested
that the new 20,000 BTU air conditioner be installed in a sleeve through the
wall under the gable end window, rather than just using a window unit AC.
Besides a neater appearance, is there any advantage to using a sleeve unit?
Also, if I had to replace it down the road, would it difficult to find a
unit that fit the same sleeve,( i.e. are there standards for AC sleeve
dimensions?). Thanks! --- John
I feel a through wall unit gives these benefits: A better, more solid
fit; no loss of day light; better control of day light with shades.
Through wall units are available and should be available for as long
as window units.
They are more available in some areas than others.
Also consider a ductless system, most are near silent in operation since the
compressor is outdoors and only require a 2 1/2" hole to the outside for
refrigerant piping and condensate line. The lower end thru the wall (hotel
style units) can be the source of much more noise than the higher end units.
Which ever you choose go for a quality unit that will have a lower db
output. Also if you have a need for heating you'll need a heat model or
electric heat strips.
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