Sign up ×  Our house has two A/C systems; one for the bedroom
level, one for the remainder of the house. The
compressor/consdensor units are outside the south side of the
house, and in direct sun all day, now that a nearby tree has
been removed.  Would shading the units, perhaps with a small
fence, improve their efficiency?  I'm not (very) concerned with
the look, as this side of the house is not visible from anywhere
aside from our veggie garden.  share|improve this question  3
Answers 3  up vote 10 down vote accepted  It helps for sure.
There have been a ton of studies done on this and I have read at
least 10-11. At one point in time I was going into a partnership
for a "greening" business.  Your variance is somewhere between
1-15%. There are a ton of variables.  Here is an OK study I read
a few weeks ago from FSEC. I personally don't like this study
because they are first in a climate that doesn't cool well at
night and then they used young trees...     1. The shading of
the air coming into condensor is su