Space Heaters
Best Energy Efficient Plug in Heater (2026): Top 4 by the Specs
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For the best energy efficient plug in heater, the TOONARS leads with a 1500 watt ECO mode, a thermostat from 59 to 95 degrees, and a 12-hour timer. The G-WILL plugs into a wall outlet at 600 watts with five modes and a 20 dB rating, while the AMBIORA covers rooms at 450 watts. The Pelonis radiator adds three heat modes and is rated for up to 250 sq ft by the maker.
Starting out? See the main guide: Best Space Heater
Top picks at a glance
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Best OverallTOONARS Space Heater for Indoor Use9.8 View on Amazon -
9.6 View on Amazon -
9.2 View on Amazon -
Also GreatAMBIORA Wall Outlet Space Heater9.2 View on Amazon
Compare the specs
Ranked on adjustable thermostat, tip-over shutoff, overheat protection, eco / energy-saving mode, remote control, timer, coverage (maker's figure), rated noise level from each listing, plus how many buyers have rated it. A dash (—) means we could not confirm that figure from the listing.
| Pick | Adjustable thermostat | Tip-over shutoff | Overheat protection | Eco / energy-saving mode | Remote control | Timer | Coverage (maker's figure) | Rated noise level | Wattage | Weight | Warranty |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. TOONARS Space Heater for Indoor Use | — | Yes | Yes | Yes | Yes | Yes | — | 35 dB | 1,500 W | — | — |
| 2. G-WILL Smart Plug in Wall Outlet Heater | Yes | — | Yes | — | Yes | Yes | — | 20 dB | 600 W | — | — |
| 3. Pelonis Oil Filled Space Heater for Indoor | Yes | Yes | Yes | — | — | — | 250 sq ft | — | 1,500 W | 16.5 lb | — |
| 4. AMBIORA Wall Outlet Space Heater | — | — | Yes | — | Yes | Yes | 100 sq ft | 36 dB | 450 W | — | — |
TOONARS Space Heater for Indoor Use
It pairs 1500 watts with an ECO mode, a 59 to 95 degree thermostat, 70-degree oscillation and a 12-hour timer.
- Tip-over shutoff
- Overheat protection
- Eco / energy-saving mode
- Remote control
- Timer
- Rated noise level: 35 dB
- Wattage: 1,500 W
Good for
- Buyers who want an ECO mode and a remote
- People who want a 35 dB tower heater
Skip it if
- You want a timer longer than 12 hours
- You want noise under 20 dB
It draws 1500 watts through a PTC ceramic element, with a thermostat that sets from 59 to 95 degrees in 1-degree steps. The ECO mode lets the thermostat adjust output to hold the set temperature, and the 70-degree oscillation spreads warm air across a wider area. It has a 12-hour timer, a remote, tip-over protection and overheat protection, and the maker puts noise as low as 35 dB.
G-WILL Smart Plug in Wall Outlet Heater
It plugs straight into a wall outlet at 600 watts, with five modes, an auto mode and a 20 dB rating.
- Adjustable thermostat
- Overheat protection
- Remote control
- Timer
- Rated noise level: 20 dB
- Wattage: 600 W
Good for
- Buyers who want a plug in mini heater
- People who want a 20 dB bedroom heater
Skip it if
- You need rated coverage past 388 sq ft
- You want more than 600 watts of heat output
It plugs into a wall outlet with a rotatable plug, and the LED display shows the room temperature. The thermostat sets from 60 to 95 degrees, and the auto mode compares the room temperature with the set temperature to adjust output. It has five modes, a wake-up timer, a 1 to 12 hour auto-off timer, a remote and overheat protection, and the maker puts noise at 20 dB.
Pelonis Oil Filled Space Heater for Indoor
It pairs 1500 watts with three heat modes, an adjustable thermostat, and a rating of up to 250 sq ft by the maker.
- Adjustable thermostat
- Tip-over shutoff
- Overheat protection
- Coverage (maker's figure): 250 sq ft
- Wattage: 1,500 W
Good for
- Owners of rooms near 250 sq ft who want one heater
- Buyers who want an oil-filled radiator on wheels
Skip it if
- You need rated coverage past 250 sq ft
- You need to carry it up stairs, since it weighs 16.5 lb
It uses 7 fins and thermal oil to spread warmth, with three heat modes and an adjustable thermostat that reaches 95 degrees. It has tip-over protection and overheat protection, simple knob controls, caster wheels and an indicator light. It weighs 16.5 lb, measures 13.8 by 11 by 25.2 inches, and is rated for up to 250 sq ft by the maker.
AMBIORA Wall Outlet Space Heater
It plugs into a wall outlet at 450 watts, with two modes, a remote, a 12-hour timer and noise under 36 dB.
- Overheat protection
- Remote control
- Timer
- Coverage (maker's figure): 100 sq ft
- Rated noise level: 36 dB
- Wattage: 450 W
Good for
- Buyers who want a 450 watt plug in heater
- People who want a heater that uses no floor space
Skip it if
- You need rated coverage past 100 sq ft
- You want more than 2 modes
It draws 450 watts through a PTC ceramic element and releases warm air in 3 seconds. One mode blows natural wind and the other gives warm air, set from the remote or the touch panel. It has a 1 to 12 hour auto-off timer, an LED display, overheat protection and a 30-second cool-down, and it measures 3.1 by 6.3 by 4.25 inches.
How to choose
Picking the best energy efficient plug in heater
Start with the coverage figure each maker gives, since wattage alone does not tell you how large a room a heater suits. The G-WILL is rated for up to 388 sq ft by the maker, the Pelonis for up to 250 sq ft by the maker, and the AMBIORA for up to 100 sq ft by the maker. Compare that maker figure with your room size, and treat it as a guide rather than a guarantee.
Thermostat and ECO modes
The TOONARS sets from 59 to 95 degrees in 1-degree steps and adds an ECO mode that adjusts output to hold the set temperature. The G-WILL sets from 60 to 95 degrees and its auto mode compares the room temperature with the set temperature.
Placement and plugs
Give any heater clear space around it, keep its cord out of walkways, and plug it straight into a wall outlet. The G-WILL and the AMBIORA plug directly into an outlet and use no floor space, while the TOONARS tower and the Pelonis radiator stand on the floor. A plug in model suits a small room or a desk area, while a heavier radiator suits a spot where it can stay put.
FAQ
What size plug in heater do I need?
Compare the maker coverage rating with your room size. The G-WILL is rated for up to 388 sq ft by the maker, the Pelonis for up to 250 sq ft by the maker, and the AMBIORA for up to 100 sq ft by the maker.
Which plug in heaters have a remote control?
The TOONARS, the G-WILL and the AMBIORA all include a remote. The G-WILL remote controls its five modes, and the AMBIORA remote sets its two modes and its timer.
How quiet are these heaters?
The G-WILL is rated at 20 dB, the TOONARS as low as 35 dB, and the AMBIORA under 36 dB. The Pelonis uses quiet operation with no wind disturbance.
Do these heaters have timers?
The TOONARS and the AMBIORA have 12-hour timers, and the G-WILL has a 1 to 12 hour auto-off timer plus a wake-up timer.
