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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 typically classified based on the size of the room and have features such as thermostats, overheat switch, and timers. Electric heaters convert electrical energy into heat by the process of heating. The heating element uses nichrome wire, which is supported by ceramic insulators. Resistor The resistor is a component of the electrical circuit that hinders the flow of current within a circuit by cutting down its voltage and absorption of some of it as heat. It converts electrical energy into thermal energy, using just a fraction of power. This process is present in a wide variety of electrical light bulbs and heating components. The thickness, material, and other properties of the resistor determine its resistance. It is important to remember that the higher the resistance's resistance, the more power it will dissipate. This is because higher currents lead to more electrons in the resistor and more electrons equate to more collisions between them. The higher the temperature, the more collisions take place. In general resistors have an maximum power rating they are able to 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 can be distinguished by their larger packaging size. You can determine the power rating by examining the packaging or by comparing it to other resistors with similar power ratings. Electric heaters are a specific type of power resistor made to convert electricity into heat. They can produce convective heat or radiant heat by emitting infrared radiations. electric fireplaces with heat 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 begin to heat up and can damage adjacent components. In extreme cases, the resistor may get to a point at which it self-ignites, causing the fire to spread. To avoid this, it is advised to have a resistor installed to limit the current. Heater resistors come with a color code which indicates their value and other information such a 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 that you could use to calculate the value of your own resistor. Coil Electric heating coils are the heart of any device powered by electricity that uses heat to warm objects or liquids. They use the process of conduction to convert electricity into heat. They can be designed in a variety of forms based on the purpose for which they are used. Electric heating coils also generate a significant amount of heat in a short amount of time, making them ideal for applications that require fast temperature changes or high thermal efficiency. The heart of an electric heating coil is a tightly wound structure of metal wires. This structure is tightly packed, allowing the most wires to be confined within an area of a smaller size, which increases conductivity. The coil is then insulated using a variety of different materials, based on the needs of the application. The insulation for an electric heater that is used for liquid immersion could be made of a non-flammable polyvinylchloride (PVC), polyester or polyimide. A coil used in cryogenics would typically be insulated with molybdenum diilicide. These materials are not only resistant to corrosion and oxidation and oxidation, but also offer protection against the elements. This makes them ideal 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 materials have a good balance of cost, oxidation resistance and corrosion resistance. Because the metals in the heating coil are exposed to high temperatures and corrosive environments, they must be protected from damage. This protection includes sealants and coatings, better drainage and ventilation, regular maintenance, and inspections. Moisture intrusion is another major issue that needs to be dealt with because it can cause damage to the internal components of a heater, and decrease its life expectancy. Coils can also be used in other devices, such as water tanks, ovens and furnaces. They can be formed in a variety of shapes to fit the application and are typically printed on substrates like aluminum 6061-T6, muscovite or Phlogopite mica sheets or conductive plastic. They can be coated with a range of materials to enhance their appearance and performance, including gold, silver, and nickel. Thermostat While you might not think about it a lot, your thermostat is an essential element of your home's comfort system. The primary function of a thermostat is to turn the heater ON and OFF so that it can maintain the temperature you prefer. It can also adjust the temperature in accordance with your routine which is a huge benefit for those who have unpredictable schedules. The most common type of thermostat is the electronic digital variety which you can program with an app on your smartphone or a computer interface. Many newer models even come with a learning feature that automatically adapts to your specific lifestyle and you won't have to worry about when you're supposed to be home for dinner. In older thermostats without digital, the electrical circuit was controlled by a bi-metal coil or metal strip that would expand or contract based on the temperature. When the strip expanded and contracted the mercury switch tipped and activated the relay, which switched on the heating. Then, as the strip cooled, it bent back and snapped away from its original position, which turned off the heating. Modern electronic thermostats are more precise than electromechanical ones, utilizing the use of a temperature sensor and a tiny relay. It's still simple to understand the mechanics of an electromechanical thermostat by examining its components. One of the key elements is a thermometer coil, that has a piece of mercury inside it. When you turn the thermostat lever upwards or downwards the coil spins and tilts the mercury switch in one direction or another. If the mercury switch tips to the left the current is flowing through it and turns on the relay that turns on the heater. But as the room gets hotter, the mercury switches to the right and interrupts the circuit which means that the heater is shut off. When the room cools down the mercury returns to its original position. The heater then switches on. If you continue to alter the temperature of your electric thermostat, it might need to work harder in order to keep up with the changes. This could cause it to consume more electricity than necessary. Timer A wall heater timer is a convenient device that allows you to schedule your lighting and heating. It comes with a built-in clock that automatically turns on and off your heaters or lights at the time you specify. It also helps you save money on your daily energy costs by preventing unnecessary usage. They are typically used in the home, but are also found in industrial and commercial establishments. They offer convenience, energy efficiency and security by controlling when electric circuits are turned on and off. They can be connected to appliances such as water pumps, lights and ovens. They are a great choice for those who want to control their electrical appliances without the need for a complicated computer or programmer. You can set a timer switch by connecting it to an outlet or extension cord. Connect the appliance you want to control. Depending on the model, you may also connect several devices simultaneously. Some models have a socket in the middle of the timer whereas others have the socket on the side or underneath it. You can choose from a variety of plug-in timer switches, such as those that can be controlled with tablets or smartphones. The majority of mechanical timers have a dial with hour and half-hour markers. They also have tiny teeth that you can pull outward to set the “ON” time and push inward to set the “OFF” time. There are also models with multiple sets, which allows you to alter 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 bit off. If your timer does not turn on or off as it should, check the wiring for any problems and make sure that all pins are correctly inserted. If you're still having trouble getting it to work, it's best to contact a professional for assistance. You may also try replacing the timer. It's recommended to keep the timer in a secure area, where it will not be easily disturbed by pets or children.