The heating element inside every electric heater is an electrical resistor, and works on the principle of Joule heating: an electric current passing through a resistor will convert that electrical energy into heat energy.
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11 Facts About Electric heating
2.
Storage heating system takes advantage of cheaper electricity prices, sold during low demand periods such as overnight.
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3.
Current flows through a conductive Electric heating material, supplied either directly from the line voltage or at low voltage from a transformer.
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4.
An immersion heater has an electrical resistance heating element encased in a tube, placed in the water to be heated.
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5.
Circulation heaters or "direct electric heat exchangers" use heating elements inserted into a "shell side" medium directly to provide the heating effect.
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6.
In Sweden the use of direct electric heating has been restricted since the 1980s for this reason, and there are plans to phase it out entirely – see Oil phase-out in Sweden – while Denmark has banned the installation of direct electric space heating in new buildings for similar reasons.
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7.
Electrification of heat of space and water Electric heating is increasingly proposed as a way forward to decarbonise the current energy system, particularly with heat pumps.
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8.
Electric heating processes are generally clean, quiet, and do not emit much byproduct heat to the surroundings.
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9.
Electrical heating equipment has a high speed of response, lending it to rapid-cycling mass-production equipment.
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10.
Design of an industrial Electric heating system starts with assessment of the temperature required, the amount of heat required, and the feasible modes of transferring heat energy.
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11.
Methods of electric heating include resistance heating, electric arc heating, induction heating, and dielectric heating.
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