Main Parts of a Water Heater
Water heaters are always an important and vital part of a home. Over the years, water heaters have been tweaked to fit every home’s needs and requirements. The traditional and most common type is a storage type water heater have been suited with the most effective and advanced technology that a certain time has made available and with the best additions to its features that makes it withstand the stress of the functions and the stress that the weather it is situated in requires it to deal with.
No matter the tweaking, there are certain parts and pieces in the system that remained the same throughout the years of consistent alteration. During maintenance and routine checks, it will help a homeowner a great deal if he knows these parts like the back of his hand. So, here are some of the most basic yet essential parts of a water heater:
- Anode Rod
The anode rod is a piece of magnesium or aluminium rod inside the storage tank connected of installed with a water heater. This is one of the most important components that need to be present in order to make the water heater work as smoothly as possible. The anode rod is essential for an electrical or gas type water heater to survive from corrosion. However, this equipment is a sacrificial piece and therefore needs routine replacement as it will gradually dissolve due to the corrosion that it had attracted to itself.
- Dip Tube
This tube functions by withstanding high temperatures. The height of a dip tube will always depend on the size of the storage tank where it is supposed to be installed in. The reason why it has to reach the bottom is for the cold water that comes inside the tank as the latter replaces the water taken out through the tap to be able to penetrate the areas that are within heating distance of the gas burner or electric coil located below the storage tank.
- Drain Valve
A drain valve installed in a water heater can either be brass or plastic and is usually situated at the bottom part of the heater. The function of the valve is to let the tank be drained thoroughly when there is an issue with the water heater that requires the unit to be looked at and inspected. The device can also come very handy, when there is a need to perform a total flush in hopes of getting rid of debris that got stuck inside the system that prevents the burner from performing its function to perfection.
- Electric Heating Elements
The heating device is the most important and unchanged components of a water heater even through the countless revisions and advancements made to the unit. The heating device, may it be a solar panel, an electric coil or a gas burner, is responsible in providing installation to the water stored inside the water tank or, for tankless water heating systems. Usually a heating device can be found on the bottom of a water tank, or at the upper portion of the heating system. Between the two, the heating device at the bottom usually does the heavy job of heating the water that drove through the dip tube. The upper heating device is responsible in reheating the water when the demand calls for it.
As anyone can guess, the function of this device is to monitor the temperature of the water inside the tank. In automated units, the temperature and the of the volume of water inside the tank can be replenished whenever either or those two becomes lower than what the system needs to perform its functions.