Water Heaters
Consumer Guide to Home Energy Saving: Water Heating
Next to heating or cooling, water heating is typically the largest energy user in the home. As homes have become more and more energy efficient during the past 20 years, the fraction of energy used for water heating has steadily increased. This chapter takes a look at the high-efficiency water heaters available and how you can reduce water heating costs with your present water heater.
Water Heater Consumer Guide |
DOE- Tankless Hot Water Heaters
Demand (tankless or instantaneous) water heaters provide hot water only as it is needed. They don't produce the standby energy losses associated with storage water heaters, which can save you money. Here you'll find basic information about how they work, whether a demand water heater might be right for your home, and what criteria to use when selecting the right model.
How They Work
Demand water heaters heat water directly without the use of a storage tank. Therefore, they avoid the standby heat losses associated with storage water heaters. When a hot water tap is turned on, cold water travels through a pipe into the unit. Either a gas burner or an electric element heats the water. As a result, demand water heaters deliver a constant supply of hot water. You don't need to wait for a storage tank to fill up with enough hot water. However, a demand water heater's output limits the flow rate.
DOE- Tankless Hot Water Heaters |
Home Energy Magazine: Water Heaters & Energy Conservation
The most useful answers can be given if the questions tie into the broader context of getting the most from the whole water-heating system. People already know they should look for energy efficiency from the heater itself. But additional savings can be found in water distribution, equipment sizing and selection, and maintenance.
Home Energy Mazazine: Water Heaters & Energy Conservation |
Hometips.com Water Heater Buying Guide
If you are in the market for a new water heater, be aware that your options now reach far beyond replacing your current storage tank water heater with one just like it. Because heating water typically consumes from 15 to 25 percent of a home's total monthly energy budget, you'll discover that the best new water heaters focus on heating water efficiently.
There are three common types of water heaters used in homes: storage water heaters, tankless on-demand water heaters, and instant hot-water dispensers.
Hometips.com Water Heater Buying Guide |
Marathon Hot Water Heater FAQ's
Mabel's outlived nine presidents, eight dogs, and twenty-seven cats. But she'll always have her Marathon.
There are very few things today still being made to withstand the test of time. The Marathon Water Heater is one of them. Or as Mabel likes to call it, "my perpetual hot water machine."
Some things you see right away like its tough but lightweight polyethylene outer shell. Others don't become apparent until you've owned a Marathon for awhile like the fact that it is incredibly energy efficient or the value of your Marathon water heater being warranted not to leak for as long as you own your home. Sounds Good. And it is.
Dozens of these little touches add up to one thing: real long-term value. So take a closer look.
Marathon Hot Water Heater FAQ's |
Tankless water heaters....the GOOD...and the BAD!
Tankless heaters have pros and cons, just like everything else. They can supply an endless supply of hot water, and can save energy.
However, they are limited in the amount of hot water that can be produced at one time and they are more expensive to purchase than a conventional storage type water heater.
They also make it take longer for you to get your hot water, since they don't start heating the water until you turn on the faucet. This problem can be solved by using a specialized pump, which in combination with the tankless unit can get your hot water to you at less than half the time it would take running the faucet full blast.
Tankless water heaters....the GOOD...and the BAD! |
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