Electricity or Gas--Whatcha Gonna Heat Your RV With?
If you're sitting in an RV park or other place where you pay for your electricity, you may wonder if it's cheaper to heat with propane or with electricity. This is far from an academic question, since the price of propane is shooting up--probably trying to keep pace with gasoline and diesel for some perverse reason.A sharp RVer did some calculations to help you "do the math" easily. He observes that electricity produces 3,800 btus per kilowatt, and that LP produces 92,000 btus per gallon. How do you compare these energy apples and oranges? It's a ratio of 24:1. Soooo, as long as a gallon of propane costs you less than 24 times the cost of a kilowatt of electricity, all things being equal, the gas is cheaper.
In our part of the country (southern Arizona) RVers report paying about 17 cents per kilowatt of power in the typical RV park. Our favorite LP supplier is charging $2.29 per gallon of the precious fuel. 17 cents times 24 equals $4.08--LP is still the fuel of choice. Provided everything else is equal. But is it?
First, if you're heating with your factory equipped LP furnace, a great deal of heat is "going up the chimney" or rather, out the vent on the side of your rig. Let's say it was 40% of the burned energy. By my calculations, once LP reaches $2.45 it might be time to think about running an electric space heater. But for those who use a non-vented heater efficiencies are MUCH higher--see our story on these hunky-dory heaters here, you'll still find LP a great saver.
Of course, other factors come into play: If you buy your LP 'in the park' or delivered, you'll probably pay a lot more money. But if your back disagrees with the idea of lifting and tossing a big, heavy LP container, electricity may be better for heating--and less needed for the heating pad.
Photo: hokkey on flickr.com
Labels: electricity, heating







