After a few comments made in other posts regarding frozen pipes, here's something I've used to good effect in previous homes during severe weather. Electric soil heater cable taped along vulnerable water pipes, the one pictured is 20 Meters and the power consumption is low, so in power cuts, a small generator will keep things going.
You can get them off Amazon. Obviously you do this sort of thing entirely at your own risk.
You can get them off Amazon. Obviously you do this sort of thing entirely at your own risk.