If you''re using a pressure alcohol stove that doesn''t work, I''d replace it. We had an alcohol stove explosion/fire on a boat visiting our harbor. The owner lived... More personally, I also went transatlantic on a boat with an alcohol stove. It stopped holding pressure on the second day of our 22-day trip to Ireland. I have also crewed many times when fumes from the stove stung the eyes and made sleeping below quite nasty. (And that was in nice weather....) In combustion, the alcohol also gives off water vapor, adding to the humidity below. Needless to say, I am nott a fan of dangerous, unreliable, and noxious systems that have lots of parts that can (and obviously do) go wrong. CNG is safer, but not always readily available. We have a LPG stove & oven on our boat now.