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What You Need to Know About an Electric Heater Electric heaters can provide warmth quickly when needed. They are usually classified based on the dimensions of the room and come with features like thermostats, an overheat switch and timers. Electric heaters convert electrical energy into heat by heating in joules. The heating element is comprised of the nichrome wire as well as ceramic insulators. Resistor The resistor is a component that reduces voltage and absorbs a portion of it in the form of heat. It converts electrical energy into thermal, wasting just one watt. This process is found in many electric light bulbs as well as heating elements. The thickness, material, and other properties of the resistor determine its resistance. It is crucial to remember that the greater the resistor's resistance, the greater power it will dissipate. This is due to the fact that higher currents lead to more electrons inside the resistor, and more electrons mean more collisions between them. The more collisions take place, 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 that have a high power rating are often called “power resistors” and are distinguished by their larger packaging size. The maximum power rating of a particular resistor can be determined from the packaging it is packaged in, or by comparing its physical dimension against other resistors with a known power rating. Electric heaters are a special type of power resistor designed to convert electricity into heat. They can generate radiant heat or convective heating by emitting infrared radiations. They are usually employed in conjunction with fans to boost the efficiency of heating. If the power rating of a resistor exceeds the power rating the resistor will heat up and can damage the components around it. In extreme cases the resistor can get to a point at which it self-ignites, causing an explosion. To prevent this from happening, a limiting resistance should be installed in the circuit. Heater resistors come with a color code which indicates their value along with other data like manufacturing accuracy and temperature coefficient. For instance, a 6-banded resistor has the first five bands that reveal its digits, and then the sixth band informs you of its multiplier and tolerance. There are many online calculators you can use to calculate the value of your own resistor. Coil Electric heating coils are at the center of any electrically powered device that uses heat to warm liquids or objects. These heaters use a process known as conduction to convert electricity into heat. They can be shaped in a variety shapes depending on the purpose for which they are used. Electric heating coils also produce a large amount heat in a short period of time, making the ideal choice for applications that require rapid temperature changes or high thermal efficiency. The core of an electric heating coil is a tightly twisted structure of wires made of metal. This compact structure allows the maximum number of wires to be confined within the smallest space, thereby increasing conductivity. The coil is then insulated using various materials, based on the requirements of the specific application. For instance the insulation of an electric heater used for liquid immersion can be made of non-flammable materials such as polyvinyl chloride (PVC), polyester, or polyimide, while a coil used in cryogenic applications is usually coated with molybdenum disilicide. These materials are not just resistant to oxidation and corrosion they also provide protection against the elements. This makes them ideal for a 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 alloys have a great balance of cost, oxidation resistance, and corrosion resistance. Metals used in heating elements are exposed to extreme temperatures and corrosive environments. They must be protected. This includes coatings, sealants, better ventilation and drainage, and regular maintenance and inspections. Moisture intrusion is a different issue that must be taken care of. It can cause damage to heater's internal components and reduce its lifespan. Coils are also utilized in other equipments, including ovens and furnaces, as well as water tanks. They can be formed into a variety of shapes to fit the application, and they are often printed on substrates such as aluminum 6061-T6, muscovite, phlogopite mica sheets, or conductive plastic. They can be coated with a variety of materials including silver, nickel and gold, to enhance their appearance. Thermostat Although you may not think about it often the thermostat is a very important component of your home comfort system. fireplace electric heaters www.fireplacesandstove.com of the thermostat is to turn the heater on and OFF to ensure that it is able to maintain the temperature you prefer. It can also adjust the temperature in accordance with your routine which is a major plus for those with an unpredictable schedule. The most commonly used type of thermostat is the electronic digital variety that you can program through a smartphone app or computer interface. Many newer models even include a learning function that automatically adapts to your unique lifestyle so you don't have to worry about when you should be at home for dinner. In the old thermostats that did not have digital the electrical circuit would be controlled by a bimetal coil or metal band which would expand or shrink based on the temperature. As the strip grew or contracted, it would trigger the mercury switch to tip, which activated the relay, which turned on the heating system. When the strip was cool, it bent backwards and snapped away from its original position. This turned off the heating. Modern electric thermostats are more precise than electromechanical ones, utilizing a temperature detector and small relay. However, it's still possible to understand the mechanics of an electromechanical thermostat by examining its components. A thermometer coil that has mercury inside is one of the most crucial components. When you turn the lever of the thermostat up or down, it spins the coil, which then tilts the mercury switch in one direction or the other. If the mercury switch tip to the left the current is flowing through it and turns on a relay that turns on the heater. As the room warms the mercury switches to the to the right, which breaks the circuit. The heater then shuts off. As the room cools down the mercury reverts to its place of origin. The heater then switches on. If you continue to change the temperature of your electric thermostat, it may have to work overtime to keep up with your ever-changing preferences, which can cause it to use up more energy than it has to. Timer A wall heater timer is a convenient device that helps you schedule your heating and lighting. Contrary to manual timers of the past, it is equipped with a built-in timer that will automatically turn on and deactivate your heaters or lights at the time you set. It can also save you money on your daily energy costs by preventing unnecessary use. They are most commonly utilized in homes however, they are also found in industrial and commercial establishments. They offer convenience, energy efficiency and security by controlling the time that electric circuits are turned on and off. They can be utilized to control appliances such as water pumps, lights and ovens. They are a great choice for those who want to control their electrical appliances with out the need for a complex programmer or a computer. Plugging a timer switch into an extension cord or outlet will allow you to set the timer. Connect the appliance you want to control. Depending on the model, you may connect multiple devices simultaneously. Some models have the socket in the middle of the timer, while others have the socket under or on the side of it. You can pick from a variety of plug-in switches, such as those that can be controlled with a smartphone or tablet. The majority of mechanical timers have an hourly dial with half-hour and half-hour marks. They also have tiny teeth that you can pull outward to set the “ON” time, and then push inward to set the “OFF” time. There are models with multiple sets. This lets you set the time for different days. It's important to note that mechanical timers may not work as expected, particularly when the internal clock is a little off. If your timer doesn't turn on or off when it should examine the wiring for any errors and make sure that all pins are properly inserted. If you're unable to fix the issue, it's suggested to seek help from an expert. You could also try replacing the timer. You should also keep the timer somewhere safe away from children and pets.