Air conditioning without a big hose hanging out of the window sounds appealing. Add a proposed £500–£600 price and it becomes something worth investigating. That is the attraction of the Octopus Cosy Cooler: an indoor appliance intended to use existing heating pipework and a compatible Cosy heat pump to carry heat outside. I like the concept. But the question behind my video is how comfortably it fits into everyday life. Cooling a room is one test. Moving it, sleeping beside