Nice tip; I always forget until too late in the year to look into air con. But not this year!

I try to avoid giving any more money to Amazon than is absolutely necessary, so I ended up having to shop around. And then failed to find this model easily-available in the UK from anywhere else, so ultimately I went for a similar-sized and similar-featured MeacoCool model, which also reviewed well (and they sell direct from their website with free next day delivery, in the UK, which is nice).

We'll see if it makes the grade later in the year, I guess. Thanks again for the reminder!