It has happened!

My boiler is in the loft and the condensate leads pit to the roof guttering.
I know it wasn't ideal but due to the location and the layout of the house
it wasn't possible to have an internal condensate solution without pipes
down stairwell and into cloakroom.

I am now thinking of tee'ing in an emergency winter by-pass so that if it
freezes again I can drain off into a bucket in my airing cupboard.

If it freezes for just a few days in a cold spell like this I can cope with
it - preferable to major external drain pipes.

Has anyone done this?