Hi - I hope you can help me. I have for the first time tried cleaning the window of my stove (a new Godin Carvin) with water and ashes. Previously I was using a couple of different sprays. Yes, it does work, but even after having started with a totally clean window yesterday morning, the stains were really heavy. It took me about an hour, and I still left a few small marks. I am burning a mixture of oak and hornbeam, which is apparently two years old. The tar seems to build up mainly overnight, when I leave it almost closed, and quite full of wood. Should the window be completely cold before cleaning, or is luke-warm better? I am lucky at the moment as I work from home, but can't imagine having to scrub for a good hour every day before going out to work - surely I am doing something wrong. Any help appreciated, as I love the stove, and it is my only form of heating, but the cleaning is driving me mad. Thanks in advance