Conventional Hot Water Heater

This water heater comes along with unique design specifications including its water capacities that will meet your home needs. This water heater operates just by holding a set number of gallons of water within a reservoir. Heating is carried out by use of electricity or gas to maintain this type of water on the desired temperature level till it can be used. Obtaining hot water is as simple as turning on a faucet. By turning the faucet on, very hot water will probably be drained through the tank using the pipes around the home. Usually, such water tanks last for at least 10-15 years. Today technologies have improved the efficiency of such tanks in relation to insulation and have reduced water heating costs by way of a significant number such as 30% compared to older models.

Tankless Hot Water Heaters

These water heaters employ a design where tanks are not used. They have high energy efficiency when compared to the conventional water heaters. Water heating is only done when it is necessary, thus making this a very effective hot water heater. Water heating is just triggered when the faucet is switched on. These water heaters are also efficient in relation to the place which it requires for installation. Sadly, they can be more expensive because they have special venting and electrical systems. There is a relatively long lifespan of virtually 15 to two decades and in addition help save 30% of heating costs.

Hybrid Heat Pump Hot Water Heater

This is a water heater that incorporates both conventional tank as well as a heat pump. By constantly extracting heat through the heat pump, it uses heat to heat water and then dumps them in the reservoir. This really is essentially the most efficient water heating system because it reduces water heating bills by 60 %.

Solar Water Heating Systems

This system utilizes solar energy to heat water. Its operation might be merely passive or active. Today there are numerous solar water heating systems in the market. The more recent active water solar heaters operate by using pumps and controls that work together to aid in circulating water in the home. Older systems were typically passive and have proven reliability and are cheaper, but the passive panels have disadvantages including lower efficiency. For max efficiency with this system, insulation of the water tank is vital thus avoiding unnecessary heat loss. One problem with using these hot water heaters is that it fails to work effectively in cloudy days. This also applies if you suddenly need an unexpectedly high hot water demand.

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If your hot water faucet is running, but the water turns cold, then most likely it is either a thermostat problem or a heating element problem.

Thermostat
A thermostat is a temperature controlled device which measures the water temperature and switches on the electric heating until the water in the tank reaches the required temperature and then turns off the heating. It is an important safety device, as well as energy saving, because if it did not operate, then the water in the tank could continue to heat up to boiling temperature. Obviously boiling water coming out of a bath or kitchen faucet is dangerous, and shows the importance of the thermostat operation. Because of this safety factor, thermostats are designed to turn off in case of failure, which may be the cause of your cold water.

Have your plumbing technician check the temperature setting to ensure that the temperature is set for 120 degrees. There is a reset button to be pressed, and the temperature setting can then be re-checked. If all appears to be in order, then your technician will disconnect power to the tank, and check for loose wires or bad connections. Operation of the thermostat can be tested with an electrical test set, and the device replaced if required.

Heating Element
If the thermostat checks out, the next item to be checked is the heating element. This is a large rectangular heating element which is inserted in the side of the tank, and directly heats the water as electricity is passed through. The element can be tested by first disconnecting power, removing a side access panel, undoing tank insulation and then removing the element and its sealing gasket. An electrical multimeter can then do a continuity test to check if the element is burnt out. Most likely our technician will have a spare element in the truck, so it can be replaced without delay.

As always where there is a mixture of electricity and water, make sure that you call a qualified plumbing expert to perform the work safely. Don’t take a chance with wet electrical wiring and contact We Know Plumbing any time to get the help you need.

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