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What You Need to Know About an Electric Heater Electric heaters can be used to provide warmth quickly when required. They are usually measured based on the dimensions of the room and have features such as thermostats, an overheat switch and timers. Electric heaters convert electrical energy into heat by the process of heating. The heating element is composed of ceramic insulators and nichrome wire. Resistor The resistor is an electrical component that impedes the flow of electricity in a circuit by decreasing its voltage and absorbing some of it as heat. It transforms electrical energy into heat energy, and uses only one watt. This is the process that is used in a wide variety of electric light bulbs as well as heating components. The thickness, material, and other characteristics of the resistor determine its resistance. The higher the resistance of the resistor, the more energy will be lost. This is due to higher currents leading to more electrons in the resistor and more electrons equate to more collisions between them. The more collisions occur, the higher the temperature. In general, resistors have an upper limit on the power that they can safely dissipate, which is usually somewhere between 1/8W (0.125W) and 1W. Resistors with a high power rating can be distinguished by their larger packaging. You can determine the power rating by examining the packaging or by comparing it to other resistors with known power ratings. Electric heaters are a specific type of power resistor made to convert electricity into heat. They can generate convective heat or radiant heat by emitting infrared radiations. They are typically used in conjunction with fans to boost the efficiency of heating. If the power rating of a resistor is exceeded the resistor will get hotter and cause damage to the components around it. In extreme situations the resistor can reach a point where it self-ignites causing an explosion. To avoid this from happening, a limiting resistance is recommended to be placed in the circuit. Heater resistors come with a color code that indicates their value as well as other data like manufacturing accuracy and temperature coefficient. For instance, a 6-banded resistor has the first five bands that reveal its digits. Then the sixth band tells you its multiplier and tolerance. If you're interested in calculating the value of your resistor, there are many online calculators available. Coil Electric heating coils form the core of any electrically powered appliance that uses heat to warm objects or liquids. They use the process known as conduction to convert electricity into heat. They can be shaped in a variety of forms based on their purpose. Electric heating coils are capable of producing a large amount of heat in a short period of time which makes them ideal for applications that require quick temperatures or high levels of thermal efficiency. The core of an electric heating coil is a tightly wound system of metal wires. This structure is tightly packed, allowing the most wires to be confined within the smallest space, thereby increasing conductivity. The coil can be insulated in a variety of ways, based on the application. The insulation for an electric heater that is used in liquid immersion can be made from a non-flammable polyvinylchloride (PVC), polyester or polyimide. A coil used for cryogenics would typically be insulated using molybdenum diilicide. These materials are not just resistant to oxidation and corrosion they also provide protection against the elements. This makes them ideal for a wide range 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 materials have a good balance of cost, oxidation resistance and corrosion resistance. Metals used in heating elements are exposed to extreme temperatures and environment that is corrosive. They must be protected. These protections include sealants and coatings, improved drainage and ventilation, regular maintenance, and inspections. Moisture intrusion is another problem that needs to be addressed. It can cause damage to heater's internal components, and shorten its lifespan. Coils can also be utilized in other devices, such as ovens, water tanks and furnaces. They can be formed into a variety of shapes to suit the needs of the application, and they are often printed on substrates such as aluminum 6061-T6, muscovite or phlogopite mica sheets, or conductive plastic. They can be coated with a wide variety of materials to improve their appearance and performance, including gold, silver, and nickel. Thermostat It's likely that you don't give it much thought but your thermostat is an essential part of your home comfort system. The primary function of a thermostat is to turn the heater on and OFF so that it is able to maintain your preferred temperature setting. It also allows you to adjust the temperature according to your daily routine. his response is great for those who have an unpredictable schedule. The most common type of thermostat is the electronic digital variety which you can program with the smartphone app or a computer interface. Certain models come with an adaptive feature that can be adapted to your needs. You'll never have to worry about when you'll be home to eat dinner. In the old thermostats that weren't digital the electrical circuit would be controlled by a bimetal coil or metal band, which would expand or shrink depending on the temperature. When the strip expanded or contracted it was tipped by a mercury switch, activating the relay which switched on the heating. As the strip cooled down it swung backwards, and snapped away from its original position. This shut off the heating. Modern electronic thermostats have replaced the electromechanical ones with an improved technology that utilizes sensors for temperature and a small relays to perform the same thing. It is easy to comprehend the mechanics of an electromechanical thermostat by looking at its components. One of the main components is a thermometer coil that has a piece of mercury in it. When you turn the thermostat lever up or down the coil turns and tilts the mercury switch in one direction or another. If the mercury switch is tipped to the left, it will trigger the relay and activate the heater. As the room gets heated the mercury switches to the right and breaks the circuit. The heater then shuts down. When the room cools down the mercury returns to its initial position. The heater then turns on. If you continue to alter the temperature on your electronic thermostat, it could need to work overtime to keep up with your evolving preferences, which causes it to consume more energy than it has to. Timer A wall heater timer is an efficient device that allows you to schedule your heating and lighting. Unlike traditional manual timers, it has a built-in clock that will automatically turn on and deactivate your heaters or lights at the scheduled time. You can also save on your monthly energy bill by avoiding excessive usage. They are mostly utilized in homes however, they can also be found at industrial and commercial facilities. They offer convenience, energy efficiency and security by regulating the electrical circuits that are turned on and off. They can be connected to appliances such as lights, water pumps, and ovens. They are an excellent choice for those who wish to control electrical appliances without a computer or complex programming. Plugging a timer switch into an extension cord or outlet lets you set it. Plug in the appliance that you wish to control. Based on the model, you can plug in several devices at the same time. Some models have a socket in the center of the timer. While others have an outlet on the side or beneath it. You can choose from a variety of plug-in timer switches, such as those that can be controlled with a smartphone or tablet. The majority of mechanical timers come with an hourly dial with half-hour and half-hour markings. They also have little teeth that you can pull outwards to set the “ON” time, and then push backwards to set the “OFF” time. There are models that have multiple sets. This lets you set the time for different days. Remember that about his may not always function correctly, especially if their internal clock is a bit off. Verify the wiring and make sure that all pins are pressed into the timer. If you're unable to solve the issue, it's recommended to seek help from a professional. You could also try replacing the timer. It's also a good idea to keep the timer in a safe area, where it will not be easily disturbed by pets or children.