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What You Need to Know About an Electric Heater Electric heaters can provide warm air quickly when required. They are usually rated for a specific room size and come with features like thermostats, overheat switch, and timers. Electric heaters convert electrical energy into heat by heating in joules. The heating element is composed of nichrome wire and ceramic insulators. Resistor The resistor is a component that reduces voltage and absorbs a portion of it in the form of heat. It transforms electrical energy into heat, wasting just one watt. This process is present in a wide variety of electrical light bulbs and heating elements. The resistance of the resistor is determined by its thickness, the material used and other characteristics. It is important to keep in mind that the greater the resistor's resistance, the greater power it can release. This is due to higher currents leading to more electrons in the resistor, and more electrons mean more collisions between them. The more collisions occur, the greater the temperature. Resistors have a maximum power rating they are able to safely eliminate. It is typically between 1/8W (0.125W) and 1W. Resistors with a high power rating are often referred to as “power resistors” and can be distinguished by their larger packaging size. The maximum power rating of a resistor can be deduced from the packaging it is packaged in or by comparing its physical size to other resistors with an established power rating. Electric heaters are special types of power resistors that are designed to convert electricity into warmth. They produce convective heat by moving air around the resistor or radiant heat by emitting infrared radiation. They are typically used in conjunction together with fans to increase the heating efficiency. If the maximum power rating of a resistor is exceeded, it will begin to heat up. This could cause damage to nearby components. In extreme cases, it may even get to a point of self-ignition and result in an ignition. To prevent this from happening, a limiting resistance is recommended to be placed in the circuit. Heater resistors are tagged with an identifier color that indicates its value as well as other information, such as manufacturing accuracy and temperature coefficient. A six-banded resistance, as an instance, has five bands that indicate its digits, and the sixth band will tell you the multiplier and tolerance. There are numerous online calculators you can use to calculate the value for your own resistor. Coil Electric heating coils are the central component of any device powered by electricity that uses heat to warm liquids or objects. These heaters use the process known as conduction to convert electricity into heat. They can be made in a variety of shapes based on the purpose for which they are used. Electric heating coils also produce a large amount heat in a short amount of time, which makes them ideal for applications requiring rapid temperature changes or high thermal efficiency. The heart of an electric heating coil is a tightly wound system of wires made of metal. This tightly packed structure allows the largest number of wires to be contained in an area of a smaller size, which increases conductivity. electric fireplace stove heater is then insulated with various different materials, depending on the requirements of the application. The insulation for an electric heater that is used for liquid immersion could be constructed of a non-flammable polyvinylchloride (PVC) or polyester polyimide. A coil used in cryogenics would typically be insulated with molybdenum diilicide. In addition to offering protection against elements, these materials also provide resistance to oxidation and corrosion which makes them suitable for a variety of industrial applications. Stainless steel is the most common element for a heater coil, but nickel-chrome and iron-chromium-aluminum alloys are also commonly used. These alloys are a great combination of cost, corrosion resistance and oxidation resistance. Because the metals inside a heating coil are exposed to corrosive and high-temperature environments, they need to be protected from damage. This protection includes sealants and coatings, better drainage and ventilation, regular maintenance, and inspections. Moisture intrusion is a different issue that needs to be taken care of. It can cause damage to heater's internal components, and shorten the lifespan of the heater. Coils are also used in other equipments, including ovens or furnaces, as well water tanks. They can be formed in various shapes based on the application and are often printed onto substrates like mica sheets (muscovite, phlogopite or muscovite) or conductive plastic. They can be coated with different materials such as silver, nickel and gold to enhance their appearance. Thermostat It's likely that you don't think about it, but your thermostat is a crucial part of your home comfort system. The thermostat's primary function is to switch on and off the heater so that you can keep your desired temperature. It also allows you to adjust the temperature to suit your daily routine. This is great for those with an unpredictable schedule. Most thermostats are electronic digital models which can be controlled via the computer interface or a apps for smartphones. Many newer models even come with a learning feature that automatically adapts to your personal preferences and you won't have to worry about when you should be home for dinner. In the old thermostats that were not digital, the electrical circuit was controlled by the bimetal coil or band that would expand or shrink based on the temperature. When the strip expanded or contracted, it triggered a mercury switch to tip, which then activated the relay that turned on the heating system. Then, as the strip cooled, it bent back and snapped away from its original position, which turned off the heating. Modern electric thermostats have replaced electromechanical thermostats with an improved technology that utilizes a temperature sensor and small relay to do the same job. It is easy to comprehend the workings of an electromechanical thermostat by examining its parts. A thermometer coil that has mercury inside is among the most important components. When you turn the lever of the thermostat up or down, it rotates the coil and tilts the mercury switch one way or the other. If the mercury switch tips to the left the current flows through it and energizes the relay that turns on the heater. As the room heats up the mercury switches to the right and cuts off the circuit so that the heater turns off. As the room cools the mercury returns to its initial position. The heater then turns on. If you continue to alter the temperature of your electric thermostat, it could need to work harder to keep up with the changes. This can result in it using more energy than it needs to. Timer A wall heater timer is a convenient device that allows you to schedule your heating and lighting. Unlike traditional manual timers, it comes with a built-in clock that will automatically turn on and deactivate your heaters or lights at the time you set. You can also save money on your monthly energy bill by avoiding excessive usage. They are mostly utilized in homes, but are also found in industrial and commercial facilities. They provide energy efficiency, convenience, and security by regulating when electric circuits are turned off and on. They can be connected to appliances like water pumps, lights and ovens. They are a great option for those who wish to control electrical appliances without a computer or complex programming. You can create a timer switch by connecting it to an outlet or extension cord. Plug in the appliance you wish to control. Depending on the model, you may also connect several devices at once. Some models have a socket located in the middle of the timer whereas others have the socket either on the side or beneath it. You can choose from a variety of plug-in switches, such as those that can be controlled with tablets or smartphones. The majority of mechanical timers have an hour and half-hour markers. They also have little teeth that you can pull outwards to set the “ON” time, and then push inward to set the “OFF” time. You can find models that have multiple sets. This allows you to set the time for different days. It's important to note that mechanical timers don't always perform as they should, particularly when the internal clock becomes a bit off. Verify the wiring and make sure that all pins are in the timer. If you're still unable to get it to function, it's best to consult a professional for help. You can also replace the timer with a new one. It is also recommended to keep the timer somewhere safe away from pets and children.