...what he (OldScout) said!
Esbit tablets will boil a pint of water if you have the larger size tablets (they come in two sizes), cover your pot, and have a very tight windscreen. I keep my esbit tablets for tinder and emergencies. The folding stove itself I use as a simplified cat can stove. Cut down a small tin can to fit inside the esbit stove, or use an altoids tin that will fit. Pack the tin with steel wool, fiberglass insulation. You need this fiber to rapidly vaporize the alcohol. To use: Open folding stove, fill tin with alcohol, and light. It will work in any temperature or wind.