Such a small addition, but make a massive difference, finally we're having doors in the house! My partner is having 'love-hate' relationship with the doors and has removed nearly all of the internal doors around the house, I didn't even realise how great job they do when it comes to keeping the heat! Now the winter is on it's way the house is slowly becoming very cold. When there's no door to keep the cold coming in from the front door or cat flap, the cold travels freely all around the house. We've agreed to get the door today from reclamation yard, and now that we've started to put them in we can already feel the difference in the temperature - I'm really glad we got around doing it :)