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Tankless water heaters are green because they only heat the water as it is needed. In a conventional water heater with a tank, there are 20 - 60 gallons of hot water that must be kept hot 24 hours a day, 7 days a week. Some of the heat in that water is constantly getting out of the tank, no matter how well it is insulated. That means that every so often, the heater must run to bring the water temperature back up. All that heat that leaks out is wasted. A tankless water heater doesn't use any energy when there is no water flowing.

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Q: How are tankless water heaters green?
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Related questions

Do tankless water heaters cost more than normal water heaters?

Yes, the tankless water heaters do cost more than the normal water heaters because tankless water heaters are designed to supply hot water only when needed unlike normal ones.


Are tankless water heaters available?

Tankless water heaters are available at most hardware/construction retail stores or online stores. Tankless water heater are much more expensive than regular water heaters.


When were tankless water heaters made?

Tankless water heaters have been around about 30 years. I believe they may have first been used on European trains.


How much do Rheem Tankless Water Heaters cost?

Tankless water heaters are produced by a wide range of manufacturers. The Rheem tankless water heater has a cost range from the mid fifteen hundreds to over two thousand dollars.


Where does one purchase a tankless gas water heater?

Tankless gas water heaters can be purchased at your retail stores like Home Depot, their prices range from $278.43 to $1716.00. Tankless gas water heaters can also be purchased from ebay.


Where can one find reviews of tankless water heaters?

To find reviews for tankless water heaters, one could check out ConsumerReports, as well as sites that sell tankless water heaters such as Home Depot and Amazon.


What is special about the Rheem Tankless water heaters?

Rheem tankless water heaters are special since they are both energy efficient, and space saving. These water heaters are also innovative due to their small size, since they can fit under sinks and small cabinets.


Are tankless water heaters any good?

Good, but expensive to operate.


Does Home Depot offer good deals on tankless water heaters?

Home Depot offers tankless hot water heaters for around $1000 depending on the specifications you need. These will need to be professionally installed.


where can i buy water heaters tankless?

You can find tankless water heaters at you local home improvement store like Lowe's or Home Depot. You can also see them online at http://www.lowes.com/pl_Water+Heaters_4294856716_4294937087_


Where can you find a good deal on tankless water heaters?

If you want a good deal on tankless water heaters, you could down to your local home store. They will have a stock of them. There may be a specialist store near you as well.


Where can electric tankless water heaters be bought?

Electric tankless water heaters can be purchased at a local home improvement store. Stores like Lowe's and Home Depot sell this type of water heater at reasonable prices.