Yeah, if this is the one I think it is he's the one with the tornado stylee air con/extractor unit. That thing is huge - so powerful it's upstairs and still manages to cool his brewing area downstairs.
Watched them before, brilliant guide and what a lucky bugger having a whole cellar (one he can stand up in too) to brew in, over here you'd be lucky to get a shed (pokes fun of the recent shed builders )