The answer is with yourself. If you think this would be intolerable then stay somewhere else for the duration. Personally, I would find it a disappointment and only that, but I would stay put and only move out if the heating had to be switched off (always assuming we are talking about the UK). If I wanted water to drink I would not buy bottled water either, but in our area there is so much residual chlorine in the supply that I can't take tap water and drink other non-alcoholic liquids instead. Water for cooking and, given their willing co-operation (non-metered areas particularly), water for incidental washing can be brought in in a large container and/or had from neighbours' garden taps or in your case from a family member. Ten days or so of this is less disruption than going camping because you have all your belongings and the space of your dwelling to enjoy.