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Cake day: June 11th, 2023

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  • This is the right answer. As LP gas converts from a liquid to a gas in the tank the latent heat of vaporization is provided by cooling the bulk of the liquid. Eventually, the liquid becomes so cold that it will not evaporate, it will not become a gas. You cannot use more of it until there is enough heat input to evaporate the fuel. This can happen in warmer weather when the withdrawal rate is too great, so that even then, you have to provide supplemental energy, heat, to allow the liquid to vaporize. LP gas, commonly “propane” but typically a blend of propane and butane, is difficult to use in cold weather for exactly this reason.