Our boiler has conked out and won't be replaced for another five days. At least four of those days are forecast to be temperatures around freezing. Is it reasonable to stay with family members until then? (They have a self-contained outbuilding, and no, I am not Dominic Cummings.) It is about a two and half hour drive from us. Government guidance says you can stay away from home if you have a reasonable excuse, but our situation is not really described in the list of those excuses. The closest one is 'if you are unable to return to your main residence', but that's not really accurate either. WWYD?