Gas vs electric cost calculation?

pulsar wrote:
A gallon of propane contains approximately 91,500 BTUs, which is equivalent to 26.8 kWh. To compare the costs, efficiencies would have to be considered. A typical propane furnace is probably about 85% efficient. At that rate, a gallon of propane provides about the same heat as 22.8 kWh of electricity.

The rest of the calculation depends on the prices of propane and electricity.

Since in our travels, we don't pay for electricity above the cost of the camp site, we use electricity for everything, when we have a 50-amp connection.

Tom

And us camp owners expect that and set our unmetered site fee schedules accordingly. You are welcome to use the power as available on unmetered sites. In our experience here on long term sites, with metered electric it is about 20% cheaper to use propane over our passed forward cost ( state regulated) elec. rate of $.14/KwH
Your state elec. rates and propane costs may be much different.