Does anybody know of the best method to demist windows at home. I live in an old house with leaded lights and in winter the condensation is a massive problem. In one of the bedrooms we have installed a tubular greenhouse heater which is effective but very ugly. Can anybody think of anything else we could use.

Many thanks

If it is a double-pane window, it sounds like the seal is broken. If that's the case, then replacement is pretty much all you can do.

XenoSapien

You have too much moisture which is reall abnormal in the cold winter. What kind of heating system do you have?

Does anybody know of the best method to demist windows at home. I live in an old house with leaded lights and in winter the condensation is a massive problem. In one of the bedrooms we have installed a tubular greenhouse heater which is effective but very ugly. Can anybody think of anything else we could use.

Many thanks
If you have moister on your windows you have bad windows or low grade windows. When warm air hits cold air it condenses(water drops on the window). That means you have cold air infiltration at your windows. The only way to stop it is to repair or replace the windows. I know its not what you want to hear but just trying to help.

You have to much moisture which is reall abnormal in the cold winter. What kind of heating system do you have?

Thanks for all the replies. The windows are large traditional single pane "leaded lights" similar to this Wayne Ricketts Stained Glass - UK Custom Stained Glass Artist and Restoration (http://www.waynerickettsstainedglass.com/30000/info.php?p=6&pno=0) . Although it's tempting to replace them with modern double glazed units the house is listed so I cannot do that. The temperature is mild but variable so the central heating system is not switched on.

Thermal shades or curtains. I don't think you have a choice. You have to get the window warmer. http://www.humboldt.edu/~ccat/virtualtour/handouts/thermal_curtains.pdf

There are various storm windows with good tight seals that can be placed on the outside of your current windows. This will keep the inside pane warmer and stop the condensation. However the leakage from your old windows can cause frost and condensation on the new storm window. The better more, expensive method, if you really want to keep your antique windows, is to sandwich them with a storm window inside and out.

There are various storm windows with good tight seals that can be placed on the outside of your current windows. This will keep the inside pane warmer and stop the condensation. However the leakage from your old windows can cause frost and condensation on the new storm window. The better more, expensive method, if you really want to keep your antique windows, is to sandwich them with a storm window inside and out.

Thank you - that's really helpful. I would love to try your method of sandwiching but it may be prohibitively expensive as there are a lot of large windows. May try it out on one to begin with and see if that cures it. Do you think this http://www.stormwindows.co.uk/pdfs/spec_horizontal_slider.pdf product will stop the condensation or will there still be leackage? I am loath to spend a lot of money on secondary glazing if it doesn't cure the problem permanently.

Yes that storm looks like a good product. Maybe you can find something a bit cheaper though.
Does it really need to be opened, or can you remove and store a less expensive product for the summer, just some other thoughts.