In article ,
"nightjar" nightjar@insert my surname here.uk.com writes:

"Andrew Gabriel" wrote in message
.. .
In article . com,
writes:
I need to buy a portable a/c and wondered where the best place might be
to go at the moment. Costco had what looked to be quite a good one
unfortunately it was too big for my needs, can't be over 30in high.
I know I could google but I am looking for a recommendation.

They don't work very well.

That depends on type. I have a split unit portable air conditioner that will
drop a room to 18C with ambient at 35C.

Yes. I was refering to the type with a single hose you dangle out
of the window. That chucks out loads of hot air, but that air was
stolen from inside the house and has to be replaced with air from
outside. This very rapid air changing inside the house severely
limits the ability of the unit to actually cool it down.

I have a unit which is like this. However, it has separate air
intake grills for the air dumped outside, and the air recirculated
in the room. By sealing the former using cardboard and duct tape
to a second thick hose and dangling this outside, the unit suddenly
starts working extremely well, as it's not doing a rapid air change
in the house anymore.

--
Andrew Gabriel