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What You Need to Know About an Electric Heater Electric heaters are an excellent way to give a quick burst of warmth when needed They are usually classified based on the size of the room They also come with features like thermostats overheat switches and timers An electric heater converts electrical energy into heat through heating in joules The heating element is made of nichrome wire and ceramic insulators Resistor The resistor is a component of the electrical circuit that impedes the flow of current within circuits by reducing its voltage and absorbing some of it as heat It does this by converting electrical energy into thermal energy and wasting just a fraction of Watt This is a standard process that is found in electric light bulbs and heating elements The thickness the material and other properties of the resistor determine its resistance It is important to remember that the greater the resistors resistance the greater energy it can dissipate This is due to higher currents leading to more electrons inside the resistor and more electrons mean more collisions between them The more collisions that occur the greater the temperature Resistors have a maximum power rating they can safely eliminate It is typically between 18W 0125W and 1W Resistors with a high power rating can be identified by their larger packaging You can determine the power rating by examining the packaging or comparing it to other resistors of known power ratings Electric heaters are special kinds of power resistors designed to convert electrical energy into warmth They can produce convective heat or radiant heat by emitting infrared rays They are often 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 nearby components In extreme cases it could even get to a point of selfignition and result in a fire In order to prevent this from happening a limiting resistor is recommended to be placed in the circuit Heater resistors have a color code which indicates their value as well as other information like a manufacturing accuracy and temperature coefficient For instance a sixbanded resistor will have five bands that tell you its digits Then the sixth band informs you of its multiplier and tolerance There are many online calculators that you can use to calculate the value for your own resistor Coil Electric heating coils form the central component of any device powered by electricity which makes use of heat to heat liquids or objects They use the process of conduction to convert electricity into heat electric wood stove can be designed in a variety of shapes based on their purpose Electric heating coils also generate a significant amount of heat in a short amount of time which makes the ideal choice for applications that require rapid temperature changes and high thermal efficiency The core of an electric heating coil is an intricately twisted arrangement of wires made of metal This tightly packed structure allows for the largest number of wires to be able to fit in an area of a smaller size thus increasing conductivity The coil is then insulated with a variety of different materials depending on the needs of the application Insulation for electric heaters that is used in liquid immersion could be made out of a nonflammable plastic called polyvinylchloride PVC or polyester polyimide A coil used for cryogenics would typically be insulated using molybdenum diilicide These materials are not only resistant to oxidation and corrosion but 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 nickelchrome and ironchromiumaluminum alloys are also commonly used These materials are a good choice for balancing cost corrosion resistance and resistance to oxidation Because the metals inside the heating coil are subjected to hightemperature and corrosive environments they must be protected from damage These protections include coatings sealants better ventilation and drainage and regular inspections and maintenance Moisture ingress is a different issue that needs to be dealt with since it can harm the internal components of a heater and reduce its life expectancy Coils are also utilized in other devices such as ovens or furnaces as well water tanks They can be cut in various shapes based on the purpose and are usually printed onto substrates like mica sheets muscovite phlogopite or muscovite or conductive plastic They can be coated with different materials including silver nickel and gold to enhance their appearance Thermostat Its likely that you dont think about it however your thermostat is an important part of your home comfort system The primary function of a thermostat is to turn the heater on and OFF to ensure that it is able to maintain your preferred temperature setting It can also alter the temperature based on your routine This is great for those with an unpredictable schedule The most popular type of thermostat is the electronic digital type that you can program using the smartphone app or computer interface Certain models have the ability to learn and adapt to your lifestyle Youll never again have to wonder when you should be home for dinner In older thermostats that werent digital the electrical circuit would be controlled by a bimetal coil or metal band which would expand or contract based on the temperature When the strip expanded and contracted the mercury switch tipped into action activating the relay that turned on the heating Then as the strip was cooling it bent back and snapped back into its original position which shut off the heating Modern electronic thermostats are more precise than electromechanical ones using a temperature detector and small relay Its easy to comprehend the workings of an electromechanical thermostat by looking at its components One of the key elements is a thermometer coil which is made up of mercury in it When you pull the lever of the thermostat up or down it spins the coil and tips the mercury switch in one direction or the other If the mercury switch tip to the left current flows through it and energizes the relay which turns on the heater As the room heats up the mercury shifts to the right and breaks the circuit which means that the heater is shut off As the room cools the mercury returns back to its place of origin The heater then switches on If you continue to alter the temperature of your thermostat it might require additional work to keep up with the changes This will cause it to consume more power than is necessary Timer A wall heater timer lets you to set the timing of your heating and lighting Contrary to manual timers of the past it has a builtin clock that will automatically turn on and turn off your heaters or lights at the time you set It can also save you money on your daytoday energy costs by preventing unnecessary use These devices are primarily used in homes but they can also be found in commercial facilities as well as industrial areas They offer convenience energy efficiency and security by regulating the electrical circuits that are turned on and off They can be connected to appliances like lights water pumps and ovens They are an excellent choice for those who need to control electrical appliances without a computer or complicated programming You can set a timer by simply connecting it to an outlet or extension cord Plug in the appliance you want to control Based on the model you may also plug in several devices at once Some models have a socket in the middle of the timer while others have the socket on the side or underneath it You can choose between a variety plugin switches for instance those that can be controlled by smartphones or tablet The majority of mechanical timers come with a dial with hour and halfhour markings You can also use the teeth to set an ON and OFF time There are also models with multiple sets which allow you to change the on and off times for different days of the week Keep in mind that mechanical timers can not always work correctly especially if their internal clock is a bit off If your timer does not turn on or off as it should be look over the wiring for any problems and make sure that all pins are pressed in correctly If youre still unable to get it to work its best to consult a professional for assistance You can also replace the timer You should also keep the timer somewhere safe away from children and pets