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Comparing Gas and Electric Hot Water Heaters
Francis Jock
http://www.helium.com/users/299821/show_articles
Most homes today are equipped with two different types of hot water heaters: gas or electric. Which one is used depends largely upon the availability and price of natural gas or propane, which can be more economical when compared to electricity. Lately, due to the energy crisis, many homeowners are adapting to solar hot water heaters, but overall, electric and gas hot water heaters remain the more common.
The difference between gas and electric hot water heaters is the source of energy. One uses a supply of natural gas or propane, which is piped directly into the home or delivered by a service company, and the other uses household electricity from the grid. The price difference between the two commodities is usually the deciding factor in making a decision about which type of hot water heater to use. Since they are approximately the same size, they are usually interchangeable with each other, wherever they are installed.
Homeowners are advised that gas and electrical hook ups should be completed only by qualified technicians or licensed plumbers. It's always a good idea to check the local building code for any installation requirements that you have to follow. This includes the proper connection of the T & PR valve and relief tube, which relives a heater of overheated water if the temperature control malfunctions.
Both types of water heaters require only occasional maintenance during their lifetime. Manufacturers recommend flushing water heaters at least once a year in order to remove any build of sediment at the base of the heater. This is an easy task to perform and an examination of the sediments will give the homeowner a look at the quality of the water supply. One thing that gas hot water heaters require that electrical hot water heaters don't is the occasional lighting of the pilot light. This is easily accomplished by following the manufacturers instructions provided with the heater.
Another difference between the two types of heaters is that a gas-operated heater heats water by burning gas in an enclosed burner at the base of the unit. Naturally, the hot exhaust from the burner has to be vented out side of the home. This is accomplished through a small section of metal pipe, which should only be installed according to building code, as well.
In the end, the choice between types of water heaters is mostly a matter of personal preference. Some homeowners do not like having an flame burning inside their home, or the thought of running out of gas and being left without hot water. On the other hand, any extended interruption of electricity can leave you without hot water, as well. Fortunately, utility and gas service companies pride themselves on providing a reliable supply of energy for our homes.
When you are in the market for a new or a replacement hot water heater, you should be comfortable with the type of energy, gas or electric,required. You should be careful to purchase a heater that is adequately sized to meet your family size. It's always a good idea to discuss your situation with an experienced sales person when considering the options. Salespeople are knowledgable and are willing to offer expert advice for free.
With this small introduction to the difference between the two most common types of water heaters, you should be able to make your choice with confidence.
Article submitted Wednesday, October 01, 2008
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