Choice For A Better Water Heater

Water Heaters are one of the most power consuming appliances you have in your household. Here i have explained of some very energy efficient water heaters.


The Old Tank Water Heater

In a tank type water heater, heat is generated from the bottom of the tank and rises through the centrally mounted exhaust. Cold water enters from the top and deposits sediments at the bottom.
Over time, the efficiency of heat transfer is reduced as the burner has to work through the build-up before heating the water.
As heat passes through a large body of water just once, the tank is limited in its ability to produce continuous hot water.
Just imagine the amount of electricity used for just having a shower. You have to keep your standard water heater on for at least an hour to get the water hot to a reasonable temperature and it uses around 2kwh of electricity to use. And after one or two family member’s uses up the water the remaining members of the family have to wait for the water heater to heat up again.


Now here comes the solution for the above problem
1)Tank Less Water Heater

This has an efficiency of around 98%. These water heaters are instant on water heaters as soon as you turn the water heater on you get hot water within minutes. No waiting for hours and no wastage of hot water. No loss of heat to the environment because there is no water tanks. This system is very efficient and you will find significant electricity savings. This is best suitable for an shower etc.
In a tank less, heat is generated in a bottom up fashion. Cold water passes through a series of coils that reduce water pressure in order to heat water quickly. However, the coils clog up over time with scale build-up that reduces efficiency, and eventually causes the heat exchanger to fail.
Because tank less is activated by flow alone, every time a faucet is opened and closed, the heating cycle must start over again. This on/off behavior causes "cold water sandwich" that impacts temperature consistency as well as delay hot water delivery to your applications


2) Hybrid Water Heaters

Now what happens when you require to provide, the whole house a reliable constant supply of hot water, for this comes the hybrid water heaters. This contains the benefit of tank less water heaters and that of tank water heaters.
In hybrid water heaters, cold water enters from the bottom up as a way of self-cleaning the sedimentation, while heat is pushed through radiating transfer pipes.


The hybrid water heaters cycle process pushes heat in various directions through the water and maximizes energy transfer. In simplest terms, this slows the exhaust of heat by reusing the energy multiple times, rather than reducing water pressure.
The end result is a small heat exchanger that is capable of replacing multiple tanks, while supplying endless hot water with consistent water pressure and doing it efficiently time after time.


3) Solar Water Heaters

The most cost effective water heaters are the solar water heaters. Theses water heaters uses natural energy of the sun to heat the water. These water heaters are placed typically on the roof or walls or nearby, and the potable hot water storage tank is typically a pre-existing or new conventional water heater, or a water heater specifically designed for solar thermal. The initial costs are high but these water heaters will save a lot on the long run. The solar heaters might not be a great idea if you are living in areas with less daylight hours.