Depending on where you are, electric is usually more expensive than l.p.
Find out what the cost of both are, and then go here to calculate
http://energy.cas.psu.edu/energyselector/


"C & E" wrote in message
news
Would one of you electron benders please tell me how I go about computing
cost of operation of an appliance if I know that it operates on 220vac at
2,000 w and 'y' is the cost of electricity/ Kwh. Is there a time factor
tied
to the 2,000 (- too many years)? I'm thinking of supplementing the shop's
LPG heat with electric thinking that it would be cheaper than just using
the
gas alone. I only heat on an as-needed basis but the last fill up nearly
cost me a good internal organ!