On Wed, 18 Feb 2009 19:40:03 -0800 (PST), Cappy
wrote:

50 gal x 8 pints/gal x 20 degree drop in temp = 8000 BTU
8000 / 134000 BTU (per gal kerosene) = 0.06 or 6/100
if 1 gal kerosene = $4.00 den 6/100 gal cost a bit less den a quarter.
Keep it up and someday u be buyin a new caddy wid it (year 3009) -
Cappy



Kerosene is going for $1.65/gal in my area. The better benefit of
keeping the water is the added humidity.