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components of water heater

When the weather is cold, taking showers is a great challenge. Most homes rely on water heaters to warm their baths or even deliver their chores effectively. Have you ever wondered, “How does water heater work?” 


Water heating systems do not only accompany us to baths; they can also be for your laundry or washing dishes. If you’re interested in how they do the trick, read further. Below, we will provide the different types of water heaters and how each one works.


Electric Water Heaters


How do electric water heaters work? Aside from their distinction in using electricity to power on, this heating system functions almost the same as its counterpart — the gas water heater. It has an insulated tank, an anode rod, a thermostat, and a pressure relief valve. 


The process of heating goes through a cycle. It begins with cold water travelling to the dip tube as electricity flows into the system. Once it reaches this component, the electric heating elements start warming the water inside the tank. As hot water rises and cold water sinks into the tank, the system transports it through the home through the heat-out pipe. This pattern happens repetitively as far as there is a need for hot water. 


Gas Water Heaters


Gas water heaters work closely like how electric water heaters do. Their crucial distinction is that this heating system uses gas, while the other utilizes power supply through electricity. They have a temperature and pressure relief valve, a drain valve, a thermostat and an insulated tank.


The heating cycle begins with cold water transported to the dip tube. Gas water heaters do not have electrical heating elements. Hence, they make use of a burner with gas as fuel. The burner radiates hot air, which is also toxic. It then warms the cold water while it exits through the chimney. The warm water rises as the cold one sinks. The heat-out pipe then proceeds to perform its duty of delivering it to the plumbing pipes of your home.


Which one should I get for my home?


Now you have the answer to “how does water heater work?” you wonder what will be best to purchase. Of course, who wants to spend on an unwise investment, right? 

Water heaters are just as necessary as your furnaces and air conditioning systemsIn getting either of these systems, you have to maintain the unit to avoid issues on the way properly. Experts recommend electric water heaters as they are efficient to use. You can have a fully functional system by merely connecting them to a power source (electricity). You also don’t need to involve yourself with toxic gas because the electrical heating parts do the job. 




Understanding how a water heater functions can come in handy for all homeowners. It gives you in-depth knowledge of the procedure and parts involved during the water heating process. At the same time, it also enables you to assess what type of water heater will be your choice for your home. 

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