After a brief hospital stay, Hawking told her that he spent the time thinking about black holes. Hawking typically comes into the office after a big breakfast and reading the news, Croasdell said. He's not an early morning person, but he does stay quite late, until about 7 or 8 in the evening, she said.
Heat (Btu/hr) = Flow Rate (GPM) x 210 x Temperature Difference (oF) Btu/hr Q = GPM x 210 x rT. Heat In Fresh Water (approx.) Heat (Btu/hr) = Flow Rate (GPM) x 500 x Temperature Difference (oF) Btu/hr Q = GPM x 500 x rT. Heat In 50% Ethylene Glycol and.
A British Thermal Unit (BTU) is the amount of heat energy needed to raise the temperature of one pound of water by one degree F. This is the standard measurement used to state the amount of energy that a type of fuel has as well as the amount of output of any heat generating device. Many air conditioners, gas appliances, and heating systems have their capacity rated in BTUs.