Electric heating

electric heaterElectricelectric heatersresistance heaterelectric heatelectrical resistance heaterelectrically heatedheatingIndustrial heatingbaseboard heating
Electric heating is a process in which electrical energy is converted to heat energy.wikipedia
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Electricity

electricalelectricelectrically
An electric heater is an electrical device that converts an electric current into heat.
Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others.

Heat pump

heat pumpscoolantdump the solar heat
Alternatively, a heat pump uses an electric motor to drive a refrigeration cycle, that draws heat energy from a source such as the ground or outside air and directs that heat into the space to be warmed.
In heating mode, heat pumps are three to four times more effective at heating than simple electrical resistance heaters using the same amount of electricity.

Space heater

space heatingspace heatersspace-heating
Common applications include space heating, cooking, water heating and industrial processes.
Portable space heaters are usually electric because a permanent exhaust is needed for heaters that burn a fuel.

Joule heating

resistive heatingohmic heatingJoule's law
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.
It forms the basis for the large number of practical applications involving electric heating.

Oil heater

filled with oiloil-filled heatersoil-filled space heaters
These heaters are sometimes filled with oil.
Although filled with oil, it is electrically heated and does not involve burning any oil fuel; the oil is used as a heat reservoir (buffer), not as a fuel.

Air conditioning

air conditionerair-conditionedair-conditioning
The high purchase price of a heat pump vs resistance heaters may be offset when air conditioning is also needed.
The heat pump is significantly more energy efficient than electric resistance heating.

Water heating

water heaterhot waterwater heaters
Common applications include space heating, cooking, water heating and industrial processes.
An electric shower head has an electric heating element which heats water as it passes through.

Geothermal heat pump

ground source heat pumpground source heat pumpsgeoexchange
In areas with average winter temperatures well below freezing, ground source heat pumps are more efficient than air-source heat pumps because they can extract residual solar heat stored in the ground at warmer temperatures than is available from cold air.
Traditional combustion furnaces and electric heaters can never exceed 100% efficiency.

Central heating

central heating systemhome heatingheating
Central heating
Electrical heating systems occur less commonly and are practical only with low-cost electricity or when ground source heat pumps are used.

Underfloor heating

floor heatingearly forms of fire hearthsFloor Heating System
An electric underfloor heating system has heating cables embedded in the floor.
Electric heating

Making Sweden an Oil-Free Society

a plan proposed for Swedenoil phase-out in Sweden
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.
To cut energy use, the commission anticipated that by 2020 at least 75% of all new housing would use low-energy building techniques similar to the German Passive house standard, and that it will also be necessary to modernize the existing housing stock, including replacing direct electric heating systems (with systems heated by district heating, biofuels or heat pumps).

HVAC

heatingclimate controlheater
Heater (types of heaters)
Another type of heat source is electricity, normally heating ribbons composed of high resistance wire (see Nichrome).

Hydro-Québec

Hydro-QuebecHydro QuebecHydro-Québec International
Low and stable rates are charged by Hydro-Québec, the provincially owned utility.
The average consumption of residential and agricultural customers is relatively high, at 16,857 kWh per year in 2011, because of the widespread use of electricity as the main source of space (77%) and water heating (90%).

Thermal efficiency

thermodynamic efficiencyefficiencyefficient
Thermal efficiency
An electric resistance heater has a thermal efficiency close to 100%.

Head-end power

head end powerHEPelectric train heating
Electric Train Heating
Electric heating

Electrical energy

electric energyenergyelectrical
Electric heating is a process in which electrical energy is converted to heat energy.

Heat

heat energythermalhot
Electric heating is a process in which electrical energy is converted to heat energy.

Cooking

cookerycookcooked
Common applications include space heating, cooking, water heating and industrial processes.

Heating element

electrical heatingelementfilament
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.

Resistor

Resistor controlresistorsResistance
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.

Electric current

currentcurrentselectrical current
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.

Nichrome

nichrome wirenickel-chromenickel-chromium
Most modern electric heating devices use nichrome wire as the active element; the heating element, depicted on the right, uses nichrome wire supported by ceramic insulators.

Electric motor

motorelectric motorsmotors
Alternatively, a heat pump uses an electric motor to drive a refrigeration cycle, that draws heat energy from a source such as the ground or outside air and directs that heat into the space to be warmed.

Heat pump and refrigeration cycle

refrigeration cycleheat pumprefrigeration-type cycle
Alternatively, a heat pump uses an electric motor to drive a refrigeration cycle, that draws heat energy from a source such as the ground or outside air and directs that heat into the space to be warmed.

Radiant heating

radiant heatheatingradiant
Electric radiant heating uses heating elements that reach a high temperature.