Nope, he posted a picture of the type of unit I was speaking of, I would never suggest a portable.
To clarify, OP lives at home.
Family dislikes idea of compressor unit being out front or seen from the front.
Window can NOT take a regular AC unit.
This leaves him with two options, a unit like I said, (look at the picture he posted) or a portable, which is a horrible option IMO.
Units like the one I posted about are great, but, as I said, the compressor can't be too far away, you do have to run copper lines that entire distance, and insulate them, I know of a few OLD schools that had units like this installed in my area, they had all the compressors on the roof and the evaporator (I think thats what the internal coils are called) in each class room. Great units, can be found cheap, but, if you have the money get a high quality one that will make it worth while.
This site calls it a Split Air Conditioner, very similar to Central Air, but, it doesn't contain duct work, and is meant for large single rooms, or small multiple rooms. Installation of the Split Air Conditioners: Deciding the Location of Indoor and Outdoor Units
Yeah you get the idea corrosive. When i want to Majorca on holiday they had two expensive Fujitsu of those type of split air conditioners, it was 35 to 45c every day on vacation but they did a spectacular job. They cooled the room to 14c if we wanted to without much of a problem. I would love that. But i have a feeling they were expensive units, they had all sorts of settings and fancy stuff. The vacation after i went to Spain and again it was 40c throughout the holiday, we had 3 portable units where you had to shove a pipe out the window, suffice to say they were a pile of crap. They took a bucket of water out the air every 4 hours yet they only dropped the temperature to about 25c.
edit:
And yeah i just changed the word Holiday to Vacation.. vacation is the right word, right ? My American isn't too great.
Just a few things to rember rebel colonists, air con units in England are uncommon,we don't have the vertical sliding windows you seem to favor and our wall's are mostly brick not the easy to alter wood frame construction you have, also most American shops either wont or can't ship to the UK and also don't have a British market presence and if they do they are not the same shop.
Oh and before I forget we use 230 volt and you are on 110 volt.
True that. Sliding windows sounds like a death trap for my hands. I don't like the idea of that. Although i live in a house that was built in 2001 and let me tell you it is not built like the traditional english house.. metal and plasterboard stud walls. When i was a kid i was playing a game with my friends and managed to chuck a foam and plastic baseball bat through the entire wall into the room opposite. Really lame.