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Shower Water Head - Water Heater Program - UCEMC

Water Heaters

Shower Water Head - Water Heater Program - UCEMC

If you’re that family member who enjoys an extra-long, hot shower to begin your day, you might want to reconsider. Since water heaters are the second largest energy expense in your home after your heating and cooling system, washing away your cares could cost you if you don’t have an efficient water heater. It pays to buy a good one.  On average, a water heater lasts from 10-15 years. But because an energy efficient model can save you so much money, you may want to install one now.

Some to consider:

  • Storage/electric resistance water heaters: The most commonly used model, the storage/electric resistance water heater works by heating water and storing it in an insulated tank. It’s inexpensive and easy to install and converts power at a 100% efficiency.
  • Heat pump water heaters: These use electricity to move heat from one place to another instead of generating heat dire4ctly. They operate like a refrigerator in reverse. While a refrigerator removes heat from a box and expels it into a surrounding room, the heat pump takes the heat from the surrounding room and expels it into the water tank. Basements that aren’t air-conditioned are an ideal place for these, as they dehumidify air as they work.
  • Tankless water heaters: These are point-of-use heaters that heat water instantaneously and have no tank. They can be gas or electric, and are more expensive to install. However, they may save money over the long-haul as they don’t have to maintain a tank-full of hot water when not in use.
  • Solar water heaters: These use solar panels on the roof or in a cleared area of the lawn to power a conventional water heater. In summer months, the solar panels may provide all the power that’s required.
  • Desuperheaters: Attached to a geothermal heat pump, desuperheaters catch waste heat and use it to warm your water. In hot climates, these can meet most of your home’s needs in summer months.

Buying Tips

  • The ENERGY STAR label is important, but look especially close at First Hour Rating (FHR) indicated on the label. This is more important than the size of the tank because it tells you how well the system will perform under pressure during morning or evening use.
  • If you live in a moderate climate, consider an efficient heat pump water heater. It may have a higher initial cost, but can save up to 50% on your energy bill.
  • Look for units with sealed combustion when buying gas or oil-fired units to avoid back-drafting into your home.
  • Choose the water heater with the highest energy fact (EF) when possible. EF is based on recovery efficiency, standby losses and cycling losses. Electric resistance haters have an EF ranging from .86 to .95; gas water heaters from .50 to .60, with a few high-efficiency models around .80; oil heaters from .70 to .85; and heat pump water heaters have an EF ranging from 1.50 to 2.00.
  • Compare warranties to make sure you’re getting the most for your money. 
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