Thank you so much everyone for signing and hopefully spreading the word with your family and friends. Katie's death was preventable, which makes it harder to bear. It is important that all carbon burning appliances are serviced regularly by a registered engineer and chimneys swept. Recently a man and his two children died of CO poison when a crisp packet got stuck up the chimney and the fire couldn't burn properly. Also, you might be in an all electric house - as 10 year old Dominic Rogers - but CO can come from an attached house or flat. So that is why an audible CO alarm is so important. Please keep safe.