It seems this year's offerings from B&Q include the previously mentioned
evaporative cooler at GBP49.

Also, a GBP179 "WA903 Mobile Air conditioner" at 8000 "BTU" - whatever
that is in real money; a GBP298 Habicool Mobile Air Conditioner at 12000
"BTU" - again whatever that is in real money; and a smaller GBP248
Habicool Mobile Air Conditioner rated at 10000 "BTU" - yet again whatever
that is in real money.

[If B&Q's previous daftness is continued, the unit's power consumption will
be shown on the data plate in Watts and its dimensions also in SI units.
Consistency ain't B&Q's strong point - presumably in order the better to
bamboozle customers.]

I presume these might be "hang a hoze out the window" jobs? Anyone had a
look at any of them?