As a cold snap hits the country I have been looking at how heat efficient my house is. The heating has been on for longer over the past few days but is the heat escaping or am I winning my battle to keep it in my house? I am told that if I turn my heating down I can save 8% on my heating bill, however I want to know how much I can save if my boiler is not working to heat the house. Well I had a day off and spent part of the day looking at this. Downstairs I already have a thick curtain in between my conservatory and my dining room but I am missing one by the front door and am toying with the idea of putting one across the bay window which currently I only have blinds for. This would make the room feel