Posted by jay on Sunday, November 25, 2012 at 3:28pm.
COULD YOU FURTHER EXPLAIN HOW MANY BTU ARE REQUIRED TO RAISE THE TEMP OF500 GALLONS OF WATER FROM 70 DEGRESS TO 160 DEGREES FAHRENHIET

PHYSICS  Damon, Sunday, November 25, 2012 at 4:38pm
As Bob Pursley said
In general:
heat=mass*specificeheat*changetemp
or
heat in = mass of water * specific heat of water * (Final temp original temp)
In these strange English units
weight in pounds is used for mass
weight = 500 gal * 8.31 pounds/gal = 4155 pounds
specific heat of water in these units = 1 BTU/pound
change in temp = 160  70 = 90 degrees F
so
BTU = 4155 * 1 * 90
= 373,950 BTU
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