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Prices checked September 29, 2026. Prices change often, so check the store page before you buy.
Short answer: The DREO Atom One is our pick for most rooms. It has a real thermostat, tip-over and overheat shut-off (ETL-listed), and is quiet enough for a bedroom, with 4.6 stars from nearly 29,000 buyers.
See the DREO Atom One on Amazon →A good space heater can make a cold room comfortable in minutes, and, used the right way, even trim your heating bill. A bad one can be loud, weak or unsafe. We compared the most-reviewed space heaters on Amazon by verified ratings, real owner complaints, safety features and price to find five worth buying, plus one type to skip. These are researched picks; we haven’t lab-tested them.
Before You Buy: 3 Quick Rules
- Safety label first. Look for UL, ETL or CSA certification, plus tip-over and overheat shut-off.
- All plug-in heaters max out at 1,500 watts. “More powerful” claims are about fans and design, not more heat. That’s enough for one room of about 150 square feet on its own, or a larger room when it’s helping your central heat.
- Plug it straight into the wall. Never use an extension cord or power strip.
At a Glance
| Award | Heater | Rating |
|---|---|---|
| Best Overall | DREO Atom One Space Heater with Thermostat | 4.6★ |
| Best Budget | Amazon Basics Ceramic Space Heater | 4.4★ |
| Best Tower Heater | Lasko 23″ Ceramic Tower Heater with Remote (751320) | 4.5★ |
| Best for Bedrooms | De’Longhi Oil-Filled Radiator Heater | 4.4★ |
| Best for Large Rooms | DREO 16-Inch Large-Room Space Heater | 4.5★ |
Our 5 Picks
#1 · Best Overall
DREO Atom One Space Heater with Thermostat
4.6★ (28,902 ratings) on Amazon
The best mix of quiet, safety and price for most rooms. It heats fast, has a real thermostat so it cycles off once the room is warm, and an ECO mode that adjusts the heat for you. A brushless motor keeps it quieter than most ceramic heaters.
Pros:
- Tip-over and overheat shut-off (ETL-listed)
- Quiet enough for an office or bedroom
- Thermostat, ECO mode, remote and wide oscillation
Cons:
- Sized for one room, not a whole floor
- Controls take a minute to learn
#2 · Best Budget
Amazon Basics Ceramic Space Heater
4.4★ (29,100+ ratings) on Amazon
A small, simple heater for a desk, bathroom-sized room or cold corner. It has the two safety features that matter most, tip-over and overheat protection, for about the price of a lunch out.
Pros:
- Tip-over and overheat protection
- Very low price
- Small enough to fit under a desk
Cons:
- No oscillation or remote
- Best for small spaces only
#3 · Best Tower Heater
Lasko 23″ Ceramic Tower Heater with Remote (751320)
4.5★ (40,600+ ratings) on Amazon
One of the most-reviewed heaters on Amazon. The tall tower design spreads warmth across a living room or bedroom, and the remote, timer and oscillation make it easy to live with. A long-trusted American brand.
Pros:
- Over 40,000 ratings from real buyers
- Remote control, timer and wide oscillation
- Overheat protection and cool-touch housing (ETL-certified)
Cons:
- Amazon listing doesn’t mention a tip-over switch, so place it on a flat floor away from walkways
- Fan can be noticeable on high
#4 · Best for Bedrooms
De’Longhi Oil-Filled Radiator Heater
4.4★ (12,900+ ratings) on Amazon
Oil-filled radiators have no fan, so they’re silent, and they give off gentle, steady heat that doesn’t dry the air as much. That makes this De’Longhi a favorite for bedrooms and nurseries. It warms up more slowly but keeps a room evenly warm.
Pros:
- Completely silent (no fan)
- Gentle, even heat with low surface temperatures
- ComfortTemp setting holds your chosen temperature
Cons:
- Takes longer to warm a room
- Heavier and pricier than ceramic heaters
#5 · Best for Large Rooms
DREO 16-Inch Large-Room Space Heater
4.5★ (10,800+ ratings) on Amazon
A bigger DREO built to push warm air farther, for open living areas and larger bedrooms. Like every plug-in heater, it tops out at 1,500 watts, so it’s best for topping up your central heat in a big room, not replacing it.
Pros:
- Designed to move warm air across larger spaces
- Strong ratings from over 10,000 buyers
- Thermostat and safety shut-offs
Cons:
- Still limited to 1,500 watts like all plug-in heaters
- Larger footprint
One to Skip: Uncertified “Miracle” Heaters
Skip no-name heaters that don’t show a UL, ETL or CSA safety mark, and any heater (often small “wall-plug” units sold through social media ads) that claims to “cut your heating bill by 90%.” Every plug-in electric heater turns electricity into heat at about the same rate, so those savings claims aren’t possible, and uncertified heaters are a real fire risk. Stick with established brands that list their safety certification.
Which Type Is Right for You?
- Ceramic (fan) heaters like the DREO, Amazon Basics and Lasko: warm a room fast and are light to carry. Best for offices and living rooms.
- Oil-filled radiators like the De’Longhi: silent, steady heat. Best for bedrooms and anyone sensitive to noise.
Will a Space Heater Lower Your Bill?
Only if you turn down the heat in the rest of the house. At the U.S. average electricity price, a 1,500-watt heater costs about 27 cents an hour at full power. We walk through the math in Space Heater vs. Furnace: Which Is Cheaper to Heat Your Home?
Use It Safely
Keep it 3 feet from anything that can burn, plug it straight into the wall, and turn it off when you leave the room or go to sleep. Read our full checklist: Space Heater Safety: 10 Rules to Follow This Winter.
FAQ
What’s the safest space heater?
Look for a safety certification (UL, ETL or CSA) with tip-over and overheat shut-off. Oil-filled radiators run at lower surface temperatures, which many people prefer around kids and pets. How you use it matters most.
What’s the quietest type?
Oil-filled radiators, like our De’Longhi pick, have no fan and are virtually silent.
Can I leave a space heater on overnight?
Fire-safety groups recommend turning space heaters off when you sleep. If you need warmth at bedtime, use one with a timer so it shuts off on its own.
The Bottom Line
For most people, the DREO Atom One is the best all-around heater. On a tight budget, the Amazon Basics Ceramic Heater covers the safety basics for about $20. For a quiet bedroom, choose the De’Longhi oil-filled radiator. Whatever you buy, check for a safety label and plug it straight into the wall.