5 Most Efficient Electric Heaters of 2025

How can the most efficient electric heaters provide you with warmth and comfort while helping you save money on energy bills? They are designed with energy-saving features and applied cutting-edge technology while emitting heat into your space properly. The products below can offer those benefits:

Here are the most efficient electric heaters you can buy in 2025:

• Best For Large Rooms (Infrared Heater): LifeSmart LifePro 1500 Watt Portable Electric Infrared Quartz Space Heater
• Best For Screened Porch (Infrared Heater): Costway 1500W Electric Hanging Heater Ceiling Mounted
• Easy To Adjust (Oil-Filled Heater ): DeLonghi Radiator Heater
• Best For Medium-Sized Rooms (Oil-Filled Heater): Costway 1500W Oil-Filled Heater Portable Radiator Space Heater
• Best For Small Rooms (Oil-Filled Heater): Newair Portable Oil Filled Radiator Space Heater

Best For Large Rooms: LifeSmart LifePro 1500 Watt Portable Electric Infrared Quartz Space Heater

Best For Large Rooms

LifeSmart LifePro 1500 Watt Portable Electric Infrared Quartz Space Heater

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With 1500-watt capacity, the LifeSmart LifePro space heater is designed to provide efficient and powerful heating for a large room (up to 1500 square feet). It focuses on heating specific objects and people, avoiding unnecessary heating of unoccupied areas. This targeted heating approach allows for effective warmth in larger spaces without wasting energy on areas that don't need to be heated.

Thanks to the wheels, you can move this heater effortlessly from room to room. This helps you easily adapt to changing heating needs, providing warmth precisely where and when it's needed, all without the hassle of heavy lifting.

Apart from its exceptional performance in heating large spaces, this heater will also enhance your home's aesthetic appeal. The stylishly crafted stained oak wood cabinet not only delivers excellent functionality but also adds a touch of natural beauty to your space, creating a warm and inviting ambiance. Here are a few decorating styles that work well with this heater design:

• Rustic/ Traditional
• Scandinavian/ Nordic
• Transitional
• Farmhouse
• Mid-century modern
• Eclectic

Best For Screened Porch: Costway 1500W Electric Hanging Heater Ceiling Mounted

Best For Screened Porch

Costway 1500W Electric Hanging Heater Ceiling Mounted

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The Costway heater is designed for screened porches because it has specific features that ensure effective and safe heating in an outdoor and semi-enclosed space.

The incorporation of an IP34 waterproof rating (which standardizes the level of protection against solids and liquids for electrical devices) and the utilization of rustproof aluminum alloy material make this model suitable for prolonged exposure to outdoor conditions in a screened porch.

This ceiling-mounted heater has a 20-inch chain which can be adjusted according to your screened porch ceiling. This design not only optimizes space but also promotes energy efficiency by effectively directing heat downward, reducing the need for excess energy consumption.

Although the Costway is installed in a hard-to-reach location, you can control the heater’s settings from a distance using a remote. It offers three power heating modes (500W/1000W/1500W), allowing you to adjust the temperature to accommodate quick changes in weather conditions.

Easy To Adjust: DeLonghi Radiator Heater

Easy To Adjust

DeLonghi Radiator Heater

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The DeLonghi Radiator heater has a digital control panel with an LED display that is user-friendly and easy to adjust. It is very easy for you to see and understand different functions of this machine through clear icons and recognizable symbols on the digital control panel.

It is not only easy to adjust but also safe to use for families with pets and children because this model comes with safety features. The child lock prevents children from changing your settings or hurting themselves and the thermal cut-off function can automatically turn off the machine when overheating. This unit makes me feel safer because the cord just gets warm on the highest setting, not too hot.

This heater disperses heat through the vents at the top, heating upward to the ceiling before gradually extending to cover the surrounding space. Therefore, it’s not the best idea to use it in large rooms with high ceilings as it takes time to effectively warm up the entire space. For a smaller room, it heats up quicker.

Best For Medium-Sized Rooms: Costway 1500W Oil-Filled Heater Portable Radiator Space Heater

Best For Medium-Sized Rooms

Costway 1500W Oil-Filled Heater Portable Radiator Space Heater

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Efficient and ideal for medium-sized rooms, this Costway oil-Filled portable heater provides consistent warmth with its high heat retention capacity. Once the diathermic oil inside is heated, it retains the warmth for an extended period, allowing the heater to continue radiating heat even after it's turned off.

This electric heater suits individuals who may not be tech-savvy or need to adjust quickly and straightforwardly. To adjust it, there is no need for the hassle of complex instructions. Simply rotating 2 power and temperature control knobs allows you to customize the heating experience.

When not in use, you can wrap the cord into the model’s built-in cord storage bracket to keep it organized neatly. Preventing the cord from dangling and getting tangled can enhance the overall aesthetics of your heater and minimize safety hazards.

Setting up this heater is a breeze since it arrives almost fully-assembled. The installation process is quick and easy because you just need to attach the wheels and it’s good to go.

This machine doesn’t require you to maintain regularly since its permanent sealing oil can prevent leakage without requiring you to add extra oil.

Best For Small Rooms: Newair Portable Oil Filled Radiator Space Heater

Best For Small Rooms

Newair Portable Oil Filled Radiator Space Heater

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Using a large heater in a small room can lead to excessive energy consumption, which is inefficient and results in higher energy bills. To avoid this waste, consider the Newair Portable Oil Filled Radiator Space Heater that is designed for small rooms (about 150 sq. ft).

What else will you like from this machine? For me, it’s the 10-hour timer. This function allows you to set the heater to operate for a specific duration,which is up to 10 hours. Once the timer is set and activated, the heater will run for the designated number of hours, and it will automatically turn off once the preset time has elapsed. This feature is not only convenient but also energy-efficient. It prevents unnecessary energy usage to minimize electricity costs.

Besides, I also love its 4 convenient wheels which allow me to move from room to room effortlessly.

How To Choose The Most Efficient Electric Heater?

Which types of space heaters are the most efficient electric models?

Oil-filled space heaters

Oil-filled space heaters are efficient because they can retain heat well. Even after turning off the heating elements, the oil continues to radiate heat for an extended period. This helps you reduce energy consumption compared to heaters that run constantly.

Infrared heater

The infrared heater emits infrared radiation, allowing it to concentrate heat directly on objects, people, and specific areas instead of warming the air in an entire space. This direct heating method is efficient as it minimizes energy losses. Once the objects in a room are heated, they radiate warmth back into the space, establishing a cycle of efficient heating.

How high the heat output is enough for your room?

The heat output of a heater is the amount of heat the machine can generate, measured in watts or BTUs (British Thermal Units). A higher heat output indicates the machine's capacity to produce more heat. However, the highest or lowest output doesn't necessarily equate to the best performance. To ensure a comfortable room temperature without unnecessary energy consumption, it is crucial to determine the appropriate heat output for your room. As a rule of thumb, every square foot of your room requires 10 watts of heating power. You need a 1500-watt heater for a 150-square feet room, for example.

Which features of a heater help you save more energy?

Temperature control can automatically turn off when reaching the desired temperature and turn it back again when the machine starts to cool down. It just uses the energy when needed, so this feature leads to savings over time.

Do you need safety features?

If your family has children and pets, invest in a heater with safety features. For instance, the automatic shutoff switch can automatically turn off the heater when it overheads or tips over to prevent fire hazards. Or the cool-to-touch exteriors can reduce the risk of burns when accidentally touching the heater. Meanwhile, using timers can prevent overheating the room and leaving the machine on too long.

Who Makes The Most Efficient Electric Heaters?

LifeSmart

LifeSmart brand primarily focuses on home comfort and automation products such as heaters, air purifiers, and smart home devices. Their infrared heaters and other types of space heaters often come with programmable settings, adjustable thermostat controls, and energy-saving modes.

FAQs

Conclusion

Although all products here are efficient electric heaters, not all of them suit your needs. You have to consider other aspects like the size (compact heaters for small rooms), insulation, and your personal heating preferences to find the most efficient electric heaters.