Back in Norn Iron we had steam-driven reciprocating toothbrushes. You just had to be careful where you pointed the exhaust, but otherwise they did a good job, and heated the bathroom into the bargain. Only time they failed was when the cellar-wight was sulking or had slept in, and didn't get the turf into the furnaces early enough to give us a good head of steam.
Of course, when the Hall was really cold in winter the steam would condense in the pipe, so that instead of a pleasant, invigorating experience you would get a splatter of boiling spray up your arm. Happy days!