I just purchased a Fujitronic FA 1300 portable AC unit. My shop is a
very well insulated loft. My home is part of a homeowners association
that prohibits window and thru the wall units, so a portable with two 5
inch ducts complies.
I have found that I need very little heat in winter (Philadelphia
weather) because the lights, dust collector and motors add significant
heat. Conversely my cooling load is substantial, which is why I went
with a dual tube 13,000 btu/hr unit.
I've had the unit about a month and it works well. I keep a eye on the
dust filter and expect to have to blow out the coils periodically
although not yet. The unit does cool well. Before the unit I could
not work in the loft in the summer. Now it has been used almost daily.
I purchased my unit from the brilliant store based on price plus
shipping, no other experience, but the transaction was fine.
The loft is about 14 by 24 feet. It faces South and is under the roof.
The roof space is ventilated and insulated @ R30.
The portable AC has a 5" inlet and 5" outlet hose. Right now I'm using
the window adapter (supplied with the AC) so all that shows is two 5"
holes in a slighty opened window. In the fall they will be piped into
my soffit so there will be no noticeable vents.