Molly Ayala
With the clean energy transition, electric heaters have become more ubiquitous, efficient, and even cheaper than fossil fuel heat. Electric heaters are the most efficient devices as the energy inputted is equal to the output. However, the difference between a good and bad electric heater is how well it distributes heat and other factors like safety and user experience. Some of the most economical electric heaters include the Dreo Solaris 718, the Dreo DR-HSH004A, the Kelvin, the Beldray Smart Radiator, the Duux Threesixty 2, the Cadet F Series 48-inch Electric Baseboard Heater, and the Vornado AVH10.
| Characteristics | Values |
|---|---|
| Efficiency | Electric heaters are 100% efficient as every watt used gets converted directly into heat. |
| Heat Output | Most electric heaters put out a maximum of 1500 watts on high settings and 750 watts on low settings. |
| Safety | Look for heaters with overheat protection, tip-over kill switches, and ALCI safety plugs. |
| Noise | Choose a heater that produces less than 60 decibels of noise, which is about the same volume as a normal conversation. |
| Controls | Ensure the heater has intuitive controls, such as multiple heat settings, timers, and smart functionality. |
| Aesthetics | Consider the design and style of the heater to ensure it blends well with your interior space. |
| Placement | Determine the intended placement of the heater, considering factors such as proximity to water sources and safety clearances. |
| Power Source | Check the power requirements and whether you may need to hire an electrician for installation. |
| Heat Distribution | Opt for heaters with oscillation or fan features to distribute heat more effectively throughout the room. |
| Additional Features | Some heaters offer air purification, adaptive heating, remote controls, and wall-mount options. |
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What You'll Learn
Electric heaters are 100% energy-efficient
Electric heaters are 100% energy efficient in that they convert all the energy that goes into them into heat energy. In other words, every kilowatt-hour of electricity that goes into an electric heater will be converted into one kilowatt-hour of heat energy. This means that if you use an electric heater, you are getting 100% of the energy you put in as output.
However, it is important to note that the electricity used by the heater was likely generated from burning coal or gas, which has an efficiency of around 30%. So, while you are getting 100% of the energy you put in back out, you are only getting 30% of the original energy from the fuel burned at the power plant. This means that your overall efficiency is actually 30%, not 100%.
Despite this, electric heaters are still a very cost-effective way to heat your home, especially if you are only heating the rooms that you are using. Electric heaters are also more efficient than gas heaters, which can be very expensive to run. In addition, electric heaters do not require the same pipe work as oil heaters, making them a more convenient option.
When choosing an electric heater, it is important to consider not only the efficiency of the heater but also how well it outputs heat in a way that is useful for its intended purpose. For example, a heater that generates a lot of sound and light may not be as useful as one that directs its heat onto your body, such as through infrared radiation. It is also important to consider the safety features of the heater, such as overheat protection and tip-over kill switches.
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Oil-filled radiators retain heat for longer
Electric heaters are considered the most efficient devices as the energy inputted is equal to the heat outputted. Oil-filled radiators are a common form of convection heater used for domestic heating. They are electrically heated and use oil as a heat reservoir, not as fuel. The oil inside the unit is warmed up, which can stay hot even when the heater is turned off. This means that oil-filled radiators retain heat for longer, offering sustained warmth even after being turned off.
Oil-filled radiators take longer to heat up than a wire element heater, but they have good thermal retaining capacity. This allows the inside fluid to cool slowly, keeping the room warm for longer. The slow cooling process of the thermal oil ensures that the room remains warm for an extended period, providing comfort without the need for the radiator to operate at full capacity. The thermal oil within the radiator retains heat efficiently, ensuring that warmth is maintained even after the unit is turned off. This results in reduced energy consumption as the radiator does not need to run continuously.
The De'Longhi TRD40615T is a sturdy oil-filled radiator that stays cooler to the touch on the exterior. The electric baseboard heaters are another option, capped at 1500W, with the choice of purchasing either a convection or hydronic version. The convection version runs similarly to a space heater, with coils that heat up and cool down rapidly. The hydronic version uses electricity to heat a pipe within the unit filled with oil. The Kelvin is another alternative, using infrared technology to warm objects rather than the surrounding air, using less wattage.
Oil-filled radiators are also safer than portable heaters as they have no exposed heating elements, and they are also quieter as they operate silently.
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Mini-split heat pumps are more efficient than traditional heaters
Electric heaters are considered the most efficient devices as they convert every watt of energy input into heat output. However, mini-split heat pumps offer even greater energy efficiency than traditional heaters.
Mini-split heat pumps are ductless heating and cooling systems that provide precise temperature control for specific areas of a home or business. They consist of an outdoor compressor unit and one or more indoor air handlers, allowing for temperature customisation in different zones. This flexibility means that only certain rooms need to be heated or cooled, rather than the entire space, resulting in greater energy efficiency and cost savings.
The efficiency of mini-split heat pumps is further enhanced by their combination of ductless technology with heat pump capabilities. Heat pumps are already highly efficient as they move rather than generate heat, requiring less energy for heat transfer. By integrating heat pump technology, mini-splits can pull warmth from outside during winters and expel warm air outdoors in summers, providing efficient heating and cooling without relying on fuel-burning.
While mini-split heat pumps offer significant energy efficiency and cost savings, there are a few considerations. Installation costs can be high, especially if extensive ductwork is required. Additionally, mini-splits may not be suitable for extreme temperature ranges, and the noise produced by their fan motors and compressors can be a drawback. Nevertheless, with their zoning capabilities and easy installation, mini-split heat pumps offer a powerful and flexible solution for heating and cooling needs.
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Electric radiant floor systems are efficient for small zones
Electric heaters are the most efficient devices as they convert every watt of energy input into heat output. Electric radiant floor systems are a type of electric heater that is efficient for small zones or single rooms. They are a good option for those looking for a plug-and-play alternative to built-in heaters.
There are two main types of radiant floor heating systems: hydronic and electric. Hydronic systems use a network of pipes to circulate hot water beneath the floor, while electric systems use electrical wiring to heat the floors. Both systems aim to warm the room from the ground up.
Electric radiant floor systems are easy to install and are more effective than hydronic systems, with no additional maintenance requirements. They are also compatible with most types of flooring, making them a good choice for single-room applications or retrofits. However, they are capped at 1500W, which is the upper limit for the amount of heat a single unit can provide.
Hydronic systems, on the other hand, have a lower upfront cost and are more efficient in the long term. They are the most popular and cost-effective radiant heating systems for heating-dominated climates. However, they require regular maintenance and take longer to heat up a space.
Overall, electric radiant floor systems are a good option for those looking for an efficient heating solution for a small zone or single room, especially if they are looking for a system that is easy to install and compatible with most types of flooring.
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Baseboard heaters are straightforward and quiet
Baseboard heaters are a simple and unobtrusive way to economically warm your home. They are a quiet heating option, which makes them a good choice for bedrooms or quiet living spaces. They are also straightforward to install and use, making them a popular choice for many.
Baseboard heaters work via convection. This means that the heater warms the air, which then circulates around the room. This natural process is quiet and efficient, and the heaters themselves are often low-cost to buy and install. They are also usually low-maintenance, with no moving parts to worry about.
The heaters are typically placed along the wall, near the floor, and heat up a room gradually. This makes them a good option for those looking for a quiet, consistent heat source. They are often used as a supplement to a central heating system, providing extra warmth in rooms that need it, or for those harder-to-heat spaces. Baseboard heaters are also relatively safe, as they do not get as hot as some other heater types, reducing the risk of burns or fires.
Baseboard heaters are a good option for those looking for a simple, quiet, and economical heating solution. They are low-maintenance, safe, and provide a consistent heat source. For those looking to heat their space without drawing attention to the heater itself, this is a great option.
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Frequently asked questions
Electric heaters are the most efficient devices as the energy inputted is equal to the output. Some of the most economical heaters include the Dreo Solaris 718, which has an economy mode for saving power, the Dreo DR-HSH004A, which is a safe and effective heater for bathrooms, and the Beldray 2,000W Smart Ceramic Core Radiator, which has multiple modes including an economic mode.
The Cadet F Series 48-inch Electric Baseboard Heater is a good option if you're looking for something quiet and inconspicuous. The Kelvin heater is also a good choice as it uses infrared technology, which makes the heating process more efficient and uses less wattage.
The best heating solution depends on several factors, including the square footage, layout, insulation, and whether you have ducts. Heat pumps typically deliver the best long-term value in comfort and energy savings, while resistance-based systems like furnaces or baseboard heaters can also be a good option in certain situations. It's also important to consider the heat output, safety, and power source when choosing an economical electric heater.
