In Britain, a kettle is as much a household staple as a cooker or a washing machine, indeed one of the first things you do when a visitor comes is put the kettle on.
of course there are still a lot of people who drink tea over here, usually strongly brewed with milk, what's called "builder's tea" though England also has a tradition of coffee drinking that goes back at least three hundred years, indeed coffee shops are really common.
then again this does have a down side, people in Britain do drink some pretty terrible instant coffee you just add water to, some instants are drinkable, but many hardly qualify as coffee, though my coffee snobbery is by no means atypical, or at least not among university students, as I said in my tabletop rp group five out of the six players all drank coffee and demanded propper coffee ;D.
I have also seen the water heaters you mention Assault freak, though usually those are more common in offices, hospitals and other places where lots of people want hot drinks fairly quickly, although many offices also just have an electric kettle (my brother's law firm does this and he takes in his own green tea).
With our dreaming and singing, Ceaseless and sorrowless we! The glory about us clinging Of the glorious futures we see,
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)