I have installed a new oak front door and oak frame in my ground floor flat. The door is exposed to the elements but has a weather bar also. I sealed the gap between the frame and brickwork with expanding foam. I have also recently decorated my hall using lining paper and paint. Since the weather has got colder and the heating has come on I have noticed that there is a condensation build up on the inside of the door, ie on metal letterbox cover and glass panels, and also a small area on the bottom of the door that is damp. The hall wall to the right of the door becomes slightly damp in two small areas of an evening but has then dried out by the morning. I treated the door with a professional stain a sealant 3 times when installing the door. My kitchen is very close to the front door and when cooking and producing steam even with the kitchen window right open the condensation goes everywhere. I can't install a rad on the hall wall because of space and don't want to install an extracotr in the kitchen. What will the long term effects be over the winter of 1) The door becoming damp on a daily basis, even though it has been treated? 2) How will the wall fair up with going damp and drying out everyday? 3) What can I do to reduce the amount of condensation? Thanks very much