At 30kgs with little castors on the bottom; highly portable on level and smooth flooring.
Up and down stone steps or rickety wooden stairs, not so much.
The exhaust has to go outside the structure or you just pull the warm air back into the system and its cooling ability gown downhill fast.
Aren’t you the lucky one 
Unfortunately it doesn’t work for me! I don’t suppose he uses an aftershave or the like that mozzies don’t like? If so please tell…
We have used them in our bedrooms both here and in the UK. When installing them we have always had them sat in the fireplaces with both the hot air hose and the drainage pipe through the wall.
We have a louvred cover externally and have used them for years.
Single downside is the noise level versus the much more expensive system, but laying there sweating in the early hours trying to sleep night after night makes you a speedy convert.
Good restful sleep is necessary to maintain good health and open windows, Mossie bites and creepy crawlies mean the windows stay closed.
Not quite sure how to cover the next subject . . . Hey ho her ladyship says I only open my mouth to change feet so here goes.
Although we are retired, we still are known to engage in “physical activities” in the bedroom that I would argue are definitely therapeutic.
Laying there sweating on hot sticky nights without even moving is not exactly conducive so to speak.
So we and our guests are definite fans of this cheaper and incredibly effective way of both cooling your bedroom and keeping a smile on your face.
If relatively low noise levels bother you that much wax earplugs are also cheap and effective.
Adores cheese ? Garlic? Salad? We’re different blood groups ?
I do wonder whether blood groups affect one’s attractiveness to mozzies. I was talking to some Australian folk a while back and they said that eating (I think) vegemite repelled them. Something to do with vitamin B? Who knows! Anyway I suppose at my age it might be cheering to know that I am attractive to something 
Definitely, vitamin 
(and B1, thiamine)
For a while, I took vitamin B1 tablets to see if it would see off the mozzies but 
How long ago? I have an old unit in France which is exactly as you described but things have moved on. I bought 2 for a lecture theatre and they worked really well, not too noisy, efficiently cooled the space and the door or window closure makes the whole setup easy
Mine’s rubbish. Unless you want the effect and the noise of sitting in a luke-warm wind tunnel. But then I bought it second hand on Le Bon Coin and 10 years ago.
Ummmm been back here 6 years so probably 8 years ago - and it was 2ndhand off Gumtree so probably at least 2years older than that!
We bought ours new about 5 years ago and it was described as “whisper quiet”
Anytime I see those words I think of Troy McClure advertising the Juice Loosener in a now very old clip from The Simpsons…
<Shouting at the top of their voices>
ARE YOU SURE IT’S ON? I CAN’T HEAR A THING!
IT’S WHISPER QUIET!
Exactly! That’s just what my portable airconwas like
You’ve hit on one of the major failings of the portable units in my view, and that is that they are always cooling warm air.
If you have a split pack, the evaporator (the indoor unit) is RECIRCULATING and cooling the air in the room, so, as it goes on, the chilling effect is cumulative .
A portable one is blowing the heated air out of the room (usually via a window - or in my case up the chimney). That volume of air has to come back into the room from somewhere which - by definition - is warmer than the target temp of the unit, it’s always cooling warm air, so it is much less efficient (Kwh for Kwh) than a split pack.
And - frankly - these days the splits are not that much more expensive than a portable one (or rather it seems the portables have got more expensive), and additionally you can hear yourself think!
The same effect can be demonstrated in a car aircon, put on recirculation and then on external air.
Surely there is the additional cost of knocking a hole through a wall (in our case 50cm) plus making good and the electrics which are not that easy in an old stone house - fine at the time of conversion, much more complicated 10 years on. In the early years we were so impressed with how the cottage stayed naturally cool - not in recent years!
I’m good at knocking out holes, brute force and pig ignorance is a virtue at times 
You’re right, of course, there is a higher up-front cost with a permanent installation, but you’re only doing it once, Plus the unit is more efficient, blissfully quiet, cheaper to run, and should be good for 10 - 20 years,
And in my case I doubt I’ll have the strength to lug the portable about at either end of the cooling season in 10 years time!
Oh, and as you yourself noted, the summers are getting hotter and hotter!
I don’t understand all these comments about weight? Our Thomson units are on wheels and don’t get lugged around anywhere. In winter they are neatly stashed in a corner in the bedroom between the wall and the wardrobe and in summer they are moved into a position adjacent to one of the windows.
I installed 2 AC split units last year at a cost of 450 bucks a pop. Best investment yet. Installation was straight forward with 2 x 80 mm diameter holes in the wall for the 2 coolant pipes and the 2 cables to the outside unit along with the condensation pipes. 16 deg C cool in the bedroom and the lounge. We had 1 mobile unit which was as most of the other OPs have said, the noise and the hot air circulating around. Now relegated to the workshop