A hot water tank is an essential part of your central heating system. It provides hot water for your taps and shower. In addition, they have thermostat controls to regulate the temperature, typically in the range of 40 to 60 deg C.
Cost
Water heating is the biggest energy hog in most homes. According to the U.S. Department of Energy, it accounts for 15 to 25 percent of residential energy use.
You'll want to consider the size of your home and your family's hot water needs. For example, if your family is small and only uses a few gallons of hot water each day, a 30-gallon tank may be enough.
The fuel source you choose will also affect the cost of your hot water heater. A gas tank is usually more expensive than an electric unit, but a higher-efficiency gas model could save you money in the long run.
Installation costs will also increase, especially if you move your current unit or install a tankless system. In addition to the actual cost of the unit itself, expect to pay for drywall, venting, plumbing or other carpentry projects required to install your new tank properly.
Energy efficiency
Energy-efficient water heaters can save you money and reduce your carbon footprint. They also improve your home's resale value.
A heat pump water heater, which uses electricity to move water from the tank to the faucet, is a highly efficient type of water heater. It also has a lower yearly operating cost than other electric water heaters.
Storage water heaters use a gas burner or an electric element to heat the water in the tank until it's hot enough for the tap. They can also reduce the amount of energy wasted on standby heat loss.
For example, a tank-style water heater might be the best choice if you live in an area with high energy costs or have a large family that takes long hot showers. However, if you have a low hot water demand or are interested in reducing energy consumption and your carbon footprint, consider buying a demand or instantaneous water heater instead of a storage model.
Installation
Installing a hot water tank is a significant undertaking, and it may be worth your time to consult with a professional before making any final decisions. In the long run, you will save money and a few headaches. The best way to do this is to shop for the best price for a new or replacement hot water tank. Then, compare quotes from contractors with similar credentials, and you should be able to save a bundle on the big job. To save even more, ask your contractor about any special offers from your local utility provider. It is also good to check out your power bill regularly for any anomalies you may have overlooked. Finally, as with most home improvement projects, a good budget is essential for the job to be done right the first time.
Maintenance
Your water heater is a vital part of your home's heating system. However, without maintenance, the tank can quickly corrode to the point of leaking and potentially causing expensive water damage.
Regular maintenance will save you money and help extend the life of your hot water tank. You will also be able to spot potential problems before they become serious.
For starters, drain about a quarter of the tank a few times a year to flush out sediments that have settled to the bottom. This will increase your water heater's lifespan and reduce energy bills by reducing sediment buildup.
Another essential maintenance task is testing the temperature-pressure relief valve annually to ensure it works properly. If it will not open and close, unscrew the old one with a pipe wrench and screw in a new one.
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