Henry on stairs
Inexplicably, what Numatic fail to tell anyone is that with the 2.4m hose, Henry can clean most staircases top-to-bottom by attaching the hose to the straight end of the metal tubing and putting the attachment on the bent part. This gives full reach, though of course it is only really suitable for stairs which do not twist as the rigid tubes are not easy to handle round a bend. However, even with just the hose, a Henry can clean in excess of 50% of an average staircase from bottom upwards, meaning the remainder can be cleaned with the cleaner on the landing above, without fear of pulling the cleaner down.
It needs to be remembered of course that every possible option for cleaning stairs brings with it another difficulty. An expanding hose on an upright can be hard to manage as it pulls backwards; an ordinary crush-proof hose extension is more to store and is easily tangled around the feet of the user as they walk down the stairs; balancing a cylinder cleaner on the stairs can be unsafe, and so on. The best plan of action is to find the method which best suits the individual user and not to over complicate the issue with problems which are not actually a problem to all. Example: I find the whole idea of needing to store hoses and 'park' tubes a lot of fuss about nothing as I never found it a problem to remove a hose from a cleaner and hang it over a coat hook, just like Electrolux used to suggest. But clearly there is a demand for such features, seeing how so many cylinder cleaners have such a thing.