Save Money in Utility Bills
Tankless water heaters are more energy efficient than conventional heaters because they heat water as it is needed. Storage type water heaters have to keep water hot 24 hours a day which results in standby energy losses. The amount you can save on your energy bills depends on how much hot water you use. "For homes that use 41 gallons or less of hot water daily, demand water heaters can be 24%-34% more energy efficient than conventional storage tank water heaters. They can be 8%-14% more energy efficient for homes that use a lot of hot water-around 86 gallons per day. You can achieve even greater energy savings of 27%-50% if you install a demand water heater at each hot water outlet." ( www.energy.gov/taxbreaks.htm)
Save Space
Tankless water heaters are considerably smaller than storage-type water heaters. An average conventional heater is about 60" tall, 22" wide, and 22" deep. The average tankless water heater is about 25" tall, 14" wide, and 10" deep. Tankless water heaters are generally wall-mounted which can save even more space.
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Continuous Hot Water
Many of us have had the unfortunate experience of running out of hot water while taking a shower. This occurs when the supply of hot water within the conventional storage tank runs out. Customers with custom shower systems with multiple shower heads and body sprays probably know this better than anyone; they can potentially benefit the most from tankless water heaters, which never run out of hot water. It is important to note however that a tankless water heater can only supply so much volume of hot water at a time, so selecting the correct unit for your application is very important.
Please see "How do I choose?" in the related articles for more detailed information.
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Maximum Cost Efficiency
We have so far learned that tankless waters use less energy than conventional storage type heaters which will save you money every month. It is also important to look at the big picture: tankless water heaters will save you money over time.
Here is an explanation of how:
The average 40 gallon storage tank will last 13 years, has an initial cost of $380, and uses $179 in fuel per year. An average whole house tankless water heater will last 20 years, have an initial cost of $800, and will use $90 per year to operate. This breaks down to a per year operating cost of $208.23 for the convention heater; and $130 for the modern on-demand tankless water heater. When you take those savings over the life the heater; the cost savings are even more attractive.
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Enviroment Friendly
The energy efficiency and life expectancy of tankless water heaters make them very eco-friendly. With energy demands readily increasing, steps toward better energy efficiency are very important.
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