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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 certain size of room and include features such as thermostats, overheat switches, and timers. Electric heaters convert electrical energy into the process of heating. The heating element is comprised of the nichrome wire as well as ceramic insulators. Resistor The resistor is a component of the electrical circuit that hinders the flow of current in a circuit by cutting down its voltage and absorption of some of it as heat. It converts electrical energy into thermal energy, and wasting only a tiny fraction of a Watt. This is a typical process that is found in electric light bulbs as well as heating elements. The thickness, material, and other properties of the resistor determine its resistance. It is important to keep in mind that the greater the resistor's resistance, the more power it will dissipate. This is because higher resistances generate greater electrons and collisions. The more collisions that 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 higher power rating are often called “power resistors,” and are distinguished by their larger packaging size. You can determine the maximum power rating by looking at the packaging or comparing it to other resistors with similar power ratings. Electric heaters are specialized types of power resistors designed to convert electricity into warmth. They can produce convective heat by circulating air over the resistor, or radiant heat by emitting infrared radiation. They are often used together with fans to increase the efficiency of heating. If the maximum power rating of an resistor is exceeded it will heat up. This can damage nearby components. In extreme situations it could even reach a point of self-ignition and cause a fire. To prevent this, a limiting resistor is recommended to be placed in the circuit. The heater resistors are identified with a color code that indicates its value as well as other information, including the accuracy of manufacturing and the temperature coefficient. For instance, a six-banded resistor will have five bands that reveal its digits, and then the sixth band informs you of its multiplier and tolerance. There are numerous online calculators you can use to calculate the value of your own resistor. Coil Electric heating coils are the heart of any electrically powered appliance that uses heat to warm objects or liquids. These heaters convert electricity into heat by a process called conduction. They can be shaped into a variety of shapes depending on the application. 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 fast temperatures or high levels of thermal efficiency. The heart of an electric heating coil is an intricately wound structure made composed of metal wires. This tightly packed structure allows for the most wires to fit into an area of a smaller size, thus increasing conductivity. The coil can be constructed to be insulated in a variety of ways, based on its application. The insulation for an electric heater that is used for liquid immersion could be made from a non-flammable polyvinylchloride (PVC), polyester or polyimide. A coil used in cryogenics will typically be insulated with molybdenum diilicide. In addition to protecting against the elements, these materials also provide resistance to oxidation and corrosion making them suitable for many 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 are a good combination of cost, corrosion resistance and resistance to oxidation. Metals used in heating elements are exposed to high temperatures and harsh environments. They need to be protected. This includes coatings, sealants, better ventilation and drainage, and regular inspections and maintenance. Moisture intrusion is another major issue that needs to be addressed because it can cause damage to the internal elements of a heater and reduce its life expectancy. Coils are also utilized in other equipments, including ovens or furnaces, as well water tanks. They can be shaped into a variety of shapes to meet the requirements of the, 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 range of materials to enhance their appearance and performance, including gold, silver, and nickel. electric wood burning stove Although you may not think about it a lot the thermostat is a very important component of your home's comfort system. The thermostat's primary function is to turn off and on the heater, so that you can keep your desired temperature. It can also adjust the temperature to suit your routine. This is great for those with an unpredictable schedule. Most thermostats are electronic models that can be programmed using a computer interface or smartphone app. Certain models have an adaptive feature that can be adapted to your lifestyle. You'll never again have to worry about when you'll be home to eat dinner. In the older thermostats that weren't digital the electrical circuit was controlled by the bimetal coil or band that would expand or shrink depending on the temperature. As the strip expanded or contracted, it triggered an aluminescent switch to tip, which then activated the relay that turned on the heating system. As the strip cooled down it bent backwards and snapped away from its initial position. This shut off the heating. Modern electronic thermostats have replaced the electromechanical ones with a more precise technology that makes use of sensors for temperature and a small relays to perform the same job. It is easy to comprehend an electromechanical thermostat's mechanics by examining its components. A thermometer with mercury in it is one of the most crucial elements. When you turn the lever on the thermostat up or down, it rotates the coil and tips the mercury switch one way or the other. If the mercury switch tips to the left, current is flowing through it and turns on the relay that activates the heater. However, as the room heats up, the mercury shifts to the right and cuts off the circuit which means that the heater is shut off. As the room cools down the mercury reverts to its initial position. The heater then switches on. If you continue to change the temperature on your electric thermostat, it may require overtime to keep up with your evolving preferences, causing it to use up more energy than it has to. Timer A wall heater timer permits you to set the timing of your lighting and heating. In contrast to traditional manual timers it is equipped with a built-in timer that will automatically activate and turn off your heaters or lights at the scheduled time. It also helps you save money on your daily energy costs by avoiding excessive usage. They are typically used in the home, but are also found in commercial and industrial facilities. They provide convenience, energy efficiency and security by regulating when electric circuits are turned off and on. They can be used to control appliances like water pumps, lights and ovens. They are an excellent choice for people who want to control their electrical appliances with out the need for a sophisticated programmer or a computer. The plug of a timer switch onto an extension cord or outlet lets you set it. Then, plug in the appliance you want to control. Depending on the model, you may connect multiple devices simultaneously. Some models have a plug in the center of the timer, whereas others have an outlet on the side or beneath it. You can select from a variety plug-in switches, including those which can be controlled by smartphones or tablet. The majority of mechanical timers have an hour and half-hour marks. You can also use the teeth to set an “ON” and “OFF” time. There are also models with multiple sets, which allows you to set the time of on and off for different days of the week. Keep in mind that mechanical timers can not always function correctly, especially if their internal clock is a little off. If your timer doesn't turn on or off when it is supposed to be, look over the wiring for any issues and ensure that all pins are correctly inserted. If you're still unable to get it to function, it's best to contact a professional for help. You can also replace the timer. It is recommended to keep the timer somewhere safe away from children and pets.