Originally Posted by uechikid
ELECTRIC????? I don't get it. Out west it cost more and is less efficient. Gas is cheep and with 170,000 BTU gas burners you can't beat it. I have never heard of inexpensive electric burners that will put out that much. Electric? No way!!
Not true at all.
Gas burners are about 25% eff at getting BTUs to the kettle. Electricity is basically 100% efficient. A 170,000 BTU burner will produce the heating power of 43,000 BTUs, that is the extent of it. If a 170,000 BTU burner provided 170,000 BTUs of heat to your kettle, youd get 13 gallons from 60F to a boil in 6 minutes flat, and it doesnt.
Electricity in California is not that expensive. In Antioch you pay $.14 per kWh, here in Indiana I pay $.10 per kWh. That is quite average across this great land.
A 20lb tank of propane contains about 17 pounds of propane, or 374,000 BTUs. If you are going to net 25% of that, you are getting about 95,000 BTUs from that tank at a cost of about $16.
1kW is 3412 BTUs... so you need about 28,000W or 28 kW to equal the same 95,000 BTUs in a 20lb tank of propane. In Indiana that would cost me $2.80, in California that would cost you $3.92. If you pay $.57 per kWh, then it would be equal to the cost of propane anyhow.
Speed of heating. This is tied to BTU output, and since electricity is so much more eff. at getting the BTUs into the kettle to do work, you need a lot fewer total BTUs to get the same outcome.
A 9000W kettle like I have will heat 13 gallons from 60F to boiling in 34 minutes. That is 30,708 BTUs, the equivelant of a 123,000 BTU burner, at 1/5 the cost to operate.
Bottom line, electricity is fast, cheap and clean.