Wiktor Wise
Electric resistance heaters are a type of electric heating that uses electric current flowing through a wire or coil to generate heat. They are controlled by a thermostat and can be installed on walls or baseboards. While all electric resistance heaters work on the same principle, they differ in their energy efficiency and cost of operation. Heat pumps, for example, are more energy-efficient than electric resistance heaters and can cut electricity use by up to 50%. However, electric resistance heaters are easier to set up and are a good option for infrequently used rooms or homes without access to natural gas pipelines.
| Characteristics | Values |
|---|---|
| How it works | An electric current flows through a wire or coil heating element, generating heat. |
| Conversion efficiency | 100% |
| Energy efficiency | 100% |
| Installation | Electric heaters are easier to set up and cost less upfront. |
| Energy consumption | Electric resistance heaters can be expensive to operate and may increase energy consumption. |
| Energy savings | Heat pumps are more energy-efficient and can cut electricity use by up to 50% compared to electric resistance heaters. |
| Maintenance | Heat pumps are low maintenance. |
| Zoned heating | Baseboard heaters are often used for zoned heating in specific rooms. |
| Thermostat | Electric resistance heaters are controlled with a thermostat, which can be line-voltage or low-voltage. |
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What You'll Learn
Electric resistance heating may be preferable to heat pumps in some climates
Heat pumps are a more efficient way to keep a home comfortable in winter, but electric heaters are easier to set up and cost less upfront. Electric resistance heating may be more suitable if you are only heating a room occasionally, or if it would be expensive to extend the existing heating system to a new addition to your home. Electric resistance heating can be supplied by centralized forced-air electric furnaces or by heaters in each room, such as electric baseboard heaters, electric wall heaters, electric radiant heat, or electric space heaters.
Electric resistance heating works by converting electrical energy into heat. As an electric current flows through a wire or coil heating element, it generates heat. The heat is then distributed through ductwork or with fans. Electric resistance heating has a conversion efficiency of 100% since the energy output and energy input are the same.
Heat pumps, on the other hand, transfer heat rather than generate it. They use electricity to transfer heat from a cool space to a warm space, making the cool space cooler and the warm space warmer. During the winter, heat pumps collect heat from the air or ground outside and bring it inside, and during the summer, they move heat from inside your house to the outdoors. While heat pumps are more energy-efficient overall, they can be less effective in extremely cold climates. Standard heat pumps can lose their heating capacity as outdoor temperatures drop, and they may struggle to keep a house comfortable in cold weather.
In summary, while heat pumps are generally more efficient and environmentally friendly, electric resistance heating may be preferable in certain situations, such as when heating a room infrequently, adding a new room to your home, or living in a very cold climate.
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Electric resistance heating is expensive to operate
Electric resistance heating converts electrical energy into heat, with a conversion efficiency of 100%. However, the cost of electricity is generally higher, and most electricity is produced from fossil fuels that have low conversion efficiency in generating electricity. This means that the overall efficiency of electric resistance heating is lower than that of heat pumps.
Electric furnaces, a type of electric resistance heating, are particularly expensive to operate due to duct heat losses and the extra energy required to distribute heated air throughout a home. This is a common issue for any heating system that uses ducts for distribution. The use of ductwork can also make it more challenging to seal in the heat, leading to further energy losses.
Additionally, the placement of electric baseboard heaters near windows and exterior walls can make them inefficient, as heat escapes through these areas. This type of heater also poses safety concerns, particularly in homes with young children, as they can cause burns and dry out the air, leading to discomfort and health issues.
While electric resistance heating may be appropriate for infrequently used rooms or when extending an existing heating system is impractical, it is generally more costly to operate than alternative heating methods.
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Electric wall heaters
Electric resistance heaters work by converting electrical energy into heat. As an electric current flows through a wire or coil heating element, it generates heat. The heat is then distributed through ductwork or with fans that send the heat out of baseboard units, wall heaters, and space heaters.
There are various types of electric heaters from different brands, making it hard to find the right one for your home. If you are looking for something cost-efficient, child-safe, and space-saving, a wall-mounted panel heater might be a good option. These heaters are usually more energy-efficient than fan-forced heaters and more economical to run than space heaters, gas heaters, and baseboard heaters. They are also completely maintenance-free, as they are fan-free and have no moving parts.
Some examples of electric wall heaters include the Qmark/Marley line of heaters, which offer a range of wattages and voltages.
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Electric furnaces
Electric resistance heating is an old-school method of heating that can be expensive to operate. Heat pumps, for instance, are more energy-efficient and provide 2-3 times more heat energy per unit of electricity than other methods. However, electric resistance heating may be appropriate if you heat a room infrequently or if it would be expensive to extend the existing heating system.
Electric resistance heat can be supplied by centralized forced-air electric furnaces or by heaters in each room. Electric furnaces are more expensive to operate than other electric resistance systems because of their duct heat losses and the extra energy required to distribute the heated air throughout the home. This is a common issue for any heating system that uses ducts for distribution.
Room heaters can consist of electric baseboard heaters, electric wall heaters, electric radiant heat, or electric space heaters. Baseboard heaters are zonal heaters controlled by thermostats located within each room. They contain electric heating elements encased in metal pipes surrounded by aluminium fins to aid heat transfer. As the air within the heater warms, it rises into the room, and cooler air is drawn into the bottom of the heater. Some heat is also radiated from the pipe, fins, and housing. Baseboard heaters are usually installed underneath windows to counteract falling cool air from the cold window glass.
Wall heaters consist of an electric element with a reflector behind it to reflect heat into the room and usually a fan to move air through the heater. They are typically installed on interior walls as exterior wall installations can be difficult to insulate.
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Heat pumps are more energy-efficient than electric resistance heating
Electric resistance heating is a common way to heat a room or a house. It works by converting electrical energy into heat. As an electric current flows through a wire or coil heating element, it generates heat. This heat is then moved throughout the house via ductwork or with fans that distribute the heat out of baseboard units, wall heaters, and space heaters.
However, electric resistance heating can be expensive to operate. Heat pumps, on the other hand, are a more energy-efficient alternative. They utilize electricity to circulate heat around your home, helping you stay comfortable in the cooler months. In winter, heat pumps move heat from outdoors into your home, and in summer, they move heat from your home to the outdoors.
Heat pumps are more efficient than electric resistance heating because they do not generate heat; they move it. Heat pumps only need energy to move heat from the outside to the inside, whereas a resistive heater needs to transfer electric energy into heat energy. This means that heat pumps can cool or heat a space for a quarter of the cost of running standard heating or cooling appliances.
Heat pumps are also more efficient than electric resistance heating in most climates. They can provide two to three times more heat energy per unit of electricity than other methods. For example, homeowners with baseboard heating pay about $1,300 more in energy costs per year compared to those with heat pumps. Additionally, heat pumps can reduce your energy consumption by up to 50% compared to electric resistance heating.
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Frequently asked questions
Electric resistance heaters convert electrical energy into heat through an electric current that flows through a wire or coil heating element.
Heat pumps are more energy-efficient than electric resistance heaters, providing 2-3 times more heat energy per unit of electricity. Heat pumps are also low-maintenance, have no emissions, and can cool your home in addition to heating it. Electric resistance heaters, on the other hand, can be expensive to operate and may not be suitable for whole-home heating.
Electric resistance heaters include electric furnaces, electric baseboard heaters, electric wall heaters, electric radiant heat, and electric space heaters.
