The Best Space Heaters

The Dr. Infrared Heater DR-968 is the best space heater on this list for most living rooms and bedrooms. Its dual infrared quartz and PTC element pulls 5,200 BTU from a 1,500 watt draw, the digital thermostat holds a set temperature between 50°F and 85°F, and Dr. Infrared Heater states it runs at 39 dB, quiet enough to leave on overnight in a bedroom. It costs $129.99 at drheaterusa.com, more than the ceramic models here, but it scored highest once heat output, safety, noise, and controls were weighed together.

Three other picks fit specific rooms and budgets. The Vornado MVH ($74.99) uses fan-driven Vortex circulation to mix warm air through a whole room instead of radiating from one spot, and it carries ETL-listed tip-over and overheat shutoffs. The De’Longhi ComforTemp KH390715CB ($149.95) is an oil-filled radiator with no fan, so it runs close to silent, though oil radiators warm a room gradually rather than instantly. The Lasko 754200 ($39.99) is the cheapest heater here and doubles as a fan in summer, but Consumer Reports and Tom’s Guide both found it has no automatic tip-over shutoff, and Tom’s Guide testing showed it warms only the air within a couple feet of itself rather than a whole room.

How we picked

Every product on this list was scored against five weighted criteria: heating performance (30%), safety features (25%), noise (15%), controls and thermostat (10%), and 3-year cost including electricity (20%). Scores came from each brand’s own spec sheet and safety documentation, plus third-party test data from Consumer Reports and Tom’s Guide where a brand did not publish a figure itself, such as decibel ratings. These are researched picks: we read product pages, spec sheets, and published test results rather than heating each unit ourselves. See how we score for the full methodology.

What to look for in a space heater

• 1,500 watt ceiling. That is the maximum a standard US 15-amp household circuit can handle safely alongside other plugged-in devices. Every heater on this list tops out at 1,500W.
• Automatic tip-over shutoff. A heater should cut power within a second or two of being knocked past roughly 45 degrees. Not every model has this: the Lasko 754200 does not, according to Consumer Reports.
• Overheat protection. This is a separate feature from tip-over shutoff. It cuts power if the internal temperature climbs too high, and it is standard on every ETL or UL listed heater in this guide.
• Noise under 45 dB for a bedroom. That is roughly library-quiet. The Lasko 754200 measured 50.4 dB in Tom’s Guide testing, about as loud as a running dishwasher, which matters if you plan to sleep near it.
• UL or ETL certification. This is third-party safety testing, not a marketing label. Check the nameplate on the back of the unit or the spec sheet on the brand’s site, not just the packaging.
• Match wattage to room size, not marketing copy. A 1,500W heater can noticeably warm a small bedroom or office. It will not carry an open living room the way a furnace does, no matter what the box promises.

FAQ

How many watts does a space heater use?

Most plug-in space heaters, including all four models here, max out at 1,500W. That is the practical ceiling for a standard 15-amp US household circuit shared with other devices.

How much does it cost to run a space heater?

At 1,500W for 4 hours a day, a heater costs roughly $372 a year in electricity at the US average residential rate of $0.17 per kWh, close to $1,117 over 3 years. That is why the purchase price matters less than most buyers expect: electricity dominates the total cost on every heater in this guide.

Are oil-filled radiators quieter than ceramic heaters?

Generally yes. Oil-filled models like the De’Longhi KH390715CB have no fan, so there is no moving-air noise, though they take longer to warm a room than a fan-driven ceramic or infrared heater.

Do I need a heater with a tip-over switch?

Yes, if the heater will sit anywhere pets, kids, or foot traffic could knock it over. Not every heater includes one. Confirm it on the spec sheet before you buy, the way you would for the Lasko 754200, which does not have one.

What size room can a 1,500W heater cover?

It depends on the model and the room’s insulation and ceiling height. Lasko rates the 754200 for up to 100 sq ft, but Tom’s Guide testing found it only warmed the air a couple of feet from the unit, not a full 10 by 15 foot room. Treat brand-stated coverage as a best case, not a guarantee.