Dan O. -- Sunday, 14 April 2002, at 1:36 p.m.
: This stove is rated 12,000 & 9200 BTU's for
: natural gas but switching over to LP brought
: it down to 8500 and 8000. I gave you the
: incorrect info in previous note. How many
: BTU's are needed to get water to a rapid boil??
That will depend on lots of variables like how much water, pot type, pot material, what you consider rapid, etc.
BTU stands for British Thermal Unit. One BTU is equivalent to the amount of heat energy required to raise the temperature of 1 pound of water 1°F. You may be able to calculate how many BTUs are required to heat the amount of water you'd like to boil in a specific time period.
Of course, not all the heat generated by a gas surface burner is transferred to the cookware and material being heating. Much of that heat is lost into the surrounding surfaces and room air. That is where an electric surface element has an advantage and an induction model most of all. those have the heat in direct contact with the pot or pan being used and much less heat is lost.
A 12,000 BTU gas surface burner should give a fair amount of heat which should enable a reasonable amount of water to be brought to a boil in a reasonable amount of time... I think.
JMO
Dan O.
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