With the cold setting in, I can't keep the fermenter warm even in the warmest room in the house during the full 24 hours of the day. I've had to resort to placing a "hot water bottle" (literally a 5l bottle filled with warm water) in the cooler box with the fermenter, covering the whole shebang with a thick towel. It seems to be working, from yesterday afternoon's 16°C temperature reading on the fermenter to this morning's 20°C I think it's a success. I get around 12 hours of very slowly released heat from the bottle of hot/warm water and keeps the fermenter just warm enough.
On that note, the fermentation is doing Land Rover-like fermenting now. It's going for a bit, and then it stops, and then it goes again, and then it stops. Obviously because of the cold, but whatever.
On the nose - it's brilliant, still. I took a little taste straight from the fermenter last night and, well, it's very hoppy, decently chocolaty and, well, to me it tastes amazing, even unchilled and uncarbonated like that. This stuff is GREAT, from my initial taste. It's also less dry than I anticipated, so the lactose will be a bit less than planned for now.