My last NM Gas bill last month was for $158.42 and I used 220 therms.
If my math is correct, that brings my cost per therm to $0.72.
Today, the gas company switched the meter and I ran my 400K Pentair heater for exactly an hour with nothing else in the house.
I see that I used about 3200 Cubic feet, which translates to 32 therms, according to this site: http://www.kylesconverter.com/energy...of-natural-gas
32 therms for one hour at cost of $0.72 per therm, equals roughly $23.
The pool heater ran for 5 hours to bring the brand new pool's water from 69° up to 80°, which is roughly 2° per hour.
Is my math correct that this 5 hour run will cost me roughly $100 ?!?