Our combined gas and electric bill is £170 for the last 22 days. To put this in context, we have premature twins who are 5 weeks old and so have to have the heating on all night (the thermostat is set to 18 degrees). In the day I just have the gas fire on in the lounge until 7pm when the heating goes back on till 7am. We have a 4 bedroom house and use gas for cooking and a gas fire and central heating. Is this a reasonable amount to expect to pay?