Electric Heating Systems? Review Electrical Heat Systems

ELECTRIC HEATING SYSTEMS FOR YOUR HOME OR OFFICE

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For consumers who want safe, reliable heat without the increasingly prohibitive cost of fossil fuel-based systems, there are a range of electric heating systems engineered to meet your needs. In general, electric heat is quieter, more efficient, and simpler to install than comparable, combustion-based systems.

All electric heating systems function on the same basic principle: by passing current through an electric resistor, electrical energy is converted into heat energy. This method, also referred to as 'Joule heating', 'ohmic heating', or 'resistive heating', was first studied extensively in the mid-1800s by James Prescott Joule. Through experimentation, Joule determined that electrons moving through conductive material in a current impart small amounts of kinetic energy to the atomic ions within the conductor. This collisions cause an increase in the vibrational energy of the ions, which is radiated as heat.

For each general class of electric heating system, the method by which this heat is transferred to objects within your structure varies. There are three main variants of electrical heating: convection heating, radiative heating, and underfloor heating. The size (and purpose) of your structure, your willingness to renovate, and your available budget will determine the correct electric heating system for your needs. A general overview of each electric heating method is given below.

CONVECTION HEATING

In a convection-based electric heating system, air is heated by a resistor within the unit and transferred to the air within your structure. As air nears the unit, it is electrically heated and rises. This movement causes colder air to move in to take its place, causing a convection cycle centred on the electrical heating unit.

Smaller, self-contained units are referred to as 'space heaters', which provide safe, silent, electric heat. These units are generally considered to present very little risk of combustion if left unattended, so long as they are not covered or left in contact with flammable materials.

The addition of a fan makes this a forced-air convection electric heating system, which heats more efficiently but is far nosier.

As a general rule, convection-based electric heating systems are inexpensive and simple to install; in the case of stand-alone units, simply plug them in to enjoy silent electric heat where required.

RADIATIVE HEATING

Radiative electric heating is not the same as the 'radiators' with which you may be familiar. This variant of electric heating system more closely resembles the heat rays of 1950s science fiction tales and is not recommended for residential or unattended use.

Radiate electrical heaters contain a resistive element coiled within a glass envelope. The resistive heat is directed by reflective material, sometimes arrayed in a parabolic dish behind the electric heating element.

The heat generated in this fashion travels from the electric heater as infrared radiation, heating objects in the room directly as opposed to heating the air. They are intended more for commercial, construction, or process heating.

For these applications, radiative electric heat is far more efficient than conductive or underfloor heating systems. Industrial or commercial workspaces may only require heat delivered to very specific process areas, such as a drying rack, while the rest of the space is allowed to ventilate naturally with outside air.

ELECTRICAL UNDERFLOOR HEATING

Electrical underfloor heating systems are sometimes referred to as 'radiant' heating systems, not to be confused with 'radiative' heating as discussed above. With this variant of electrical heating system, heat is applied directly to the floor of the space, creating a gentle convection system throughout the room with a height of 2 meters.

Methods of delivering heat to the space vary. Some underfloor electrical heating systems heat a refrigerant liquid in a central location, which is then pumped in a circuit under the sub-floor. While this method requires some additional installation (and, in some localities, the assistance of a licensed plumbing or HVAC contractor), it does provide the option of cooling the same space in warmer months without needing to install an entirely separate system.

Another popular approach to radiant electric heating systems involves directly embedding electrical resistors in the floor of a space, either within masonry or under finished flooring. This approach is more difficult to install without complete renovation of the space, but requires no idle time at start-up and heats far more efficiently.

ECONOMIC ASPECTS

While a side-by-side comparison with conventional systems may suggest that electrical heating systems are more expensive than fossil fuel-based systems, this analysis ignores several factors which weigh heavily in favour of electric heating.

Electric heating systems allow much more efficient use of heat energy throughout a structure, as the separate electrical resistance heaters in each space can be controlled individually and with precision. An oil or gas system, by contrast, generates all of its heat in a central location before distributing it with far less consideration for particular rooms or temperature zones. In addition, these conventional systems consume energy at idle and start up which is not required by electric heating systems.

Fossil fuel prices are not going down by any reasonable estimate. An oil or LP gas system which compares favourably to an electric heating system at today's fuel prices is assured to cost far more, not less, over the lifetime of its use. In addition, when the consumer decides that cost has become prohibitive, replacement of their fossil fuel system with an electric heating system will require additional investment in construction, skilled labour, and inspection by local authorities. By contrast, electric heating systems are poised to take immediate advantage of economic improvements in generating technology without requiring replacement or renovation by the end user.

‘Electric heating systems’’ cozy importance has become an essential in most parts of the world. The ‘electric heating systems’ are very advantageous than the conventional methods of heating the living space. Through proper installation, you can also save a lot of space, which a normal fire-place takes-up in the living area. The electric system provides you the upper hand to spread the heat in a uniform manner. With the press of a button, you can achieve the preferred temperature. Being the most cheap and effective way of heating your environment, ‘electric heating systems’ is sure to make your lifestyles warm.