Propane Water Heater Vs. Electric

Energy efficiency is key when choosing a hot water heater.

One-quarter of the average home's energy costs go toward heating water. With that in mind, you should examine the energy efficiency of the hot water heaters you are considering for your home. Modern technology has improved water-heating systems, so there are more efficient options than ever. If it has been awhile since the system in your home was replaced, now is a good time to learn about newer models.

Options

Propane gas or electricity can be used for both conventional and tankless, or on-demand, water heaters. However, only electricity will work with heat pump water heaters.

Efficiency

Generally speaking, propane water heaters are more energy efficient than electric models. They can heat water in a quicker manner than electric water heaters do, thus lowering energy bills and providing a better experience for things such as cooking and showering.

While a conventional electric water heater may need an hour to heat a standard 40-gallon water tank, a propane heater can accomplish the task in about half that time. This is possible because of the pilot light in propane heaters. This is a small flame that is essentially always lit so that the main burner is ignited instantly the moment more hot water is needed.

Cost

While generally not as cheap as natural gas, propane offers what is normally a more affordable alternative over electrically powered water heaters. On average, propane-fueled water heaters can cost between $250 and $350 a year to operate, while electric water heaters can range from about $400 to about $600, according to the website Consumer Energy Center. Although it depends on the size and quality of the tank, electric systems are typically cheaper to buy and install. They range from about $100 to $600, compared with a gas system, which runs from about $250 to $1,000.

Power Supply

One operational area where electric water heaters have an advantage over propane models involves the means of powering them. While propane must be delivered when the tank needs to be refilled, electricity is always available, short of a power outage. If the power goes out in a storm or other situation, propane has a big edge. A danger with propane, however, is in its odorless nature. Should there be a leak in the tank, it may not be immediately noticeable, and propane is highly combustible.

Environment

While propane gas is considered a clean-burning fuel, the same cannot be said for electrically powered water heaters. Electricity is produced typically by the burning of fossil fuels, usually coal in most cases, which is not considered to be good for the atmosphere. If going with the more environmentally friendly choice is an important factor, propane is the better choice.

References

• Energysavers.gov
• Consumer Energy Center
• Propane Gas Heaters