Did you know that propane generates a lot more Btu than an equivalent amount of electricity? This means you need much less propane to produce the same amount of heat energy. That’s a big reason why propane is better for the environment. Because the less energy you use, the greener you are.
To appreciate propane’s big advantage over electricity in energy efficiency, let’s take a closer look at BTU content.
According to the U.S. Energy Information Administration, a British thermal unit (Btu) is a measure of the heat content of fuels or energy sources. It’s measured by the quantity of heat that’s required to raise the temperature of one pound of water by one degree Fahrenheit–at the temperature in which water has its greatest density (approximately 39 degrees Fahrenheit).
BTUs can be used to compare energy sources on an equal basis. To compare propane to electricity, we need to know that:
To make these two energy sources “equal,” divide 91,452 Btus by 3,412 Btu. Your answer will be:
Propane101.com makes this comparison to illustrate the efficiency of propane compared to electricity. A 100-watt light bulb left on for a full day–24 hours–will consume 2.4 kWh. If propane could be used to power the same light bulb. it would only use 9/100th of a gallon of propane.
Thanks to BTU telling us how much heat energy is in a gallon of propane, we can make estimates about how much fuel the average homeowner will use. The estimates below are expressed as BTU per hour. This is a way to represent a measurement of deliverable power applicable to each propane gas appliance. (Think of it like the horsepower rating of a car). As an example, a typical furnace is about 100,000 BTU per hour. You can go here to read more about BTU per hour.
Read more about the benefits of propane.