I moved into a flat in July which only has a storage heater in the living room & a heated towel rail in the bathroom. I am going to stay at my Dad's for 2 weeks & I'm worried about the pipes freezing. I can't afford to leave the heating on as it costs £100 a week. I will leave the heated towel rail on to provide some heat in the bathroom. I do use portable heaters in the bedroom but I don't want to leave these on unattended. Does anyone have any suggestions to prevent the pipes freezing?