Dave Plowman (News) formulated the question :
Just out of curiously, why would you want to steam clean a window? Even my
kitchen one close to the cooking area cleans easily with warm water and a
drop of washing up liquid.

I think a TV ad for a steam cleaner showed it being used to clean a
window. Having bought and tested one, I really cannot think of a slower
method by which one could clean a window.

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Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk