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The Best Space Heaters of 2026, by Type

Updated · 3 types ranked · How we rank

Our verdict: The best space heater depends on the type you need. Our No. 1s are the Pelonis Oil Filled Radiator Heater with Remote and Thermostat PH-14A (oil-filled), the Dreo Whole Room Space Heater 714 (ceramic) and the De'Longhi SlimStyle Digital Convection Panel Heater with Dual Fan HCX9115E (convection).

The best space heater of each type

Which type of space heater suits you?

Space heaters warm a room in different ways, so we rank each type against its own kind: oil-filled radiators, ceramic space heaters and convection heaters. Pick your type, then pick from its ten.

Oil-filled

Heats oil sealed inside its fins, which gives off steady, silent warmth that lingers after it switches off.

Best for: Heating one room for hours at a time, such as a bedroom or a home office.

The ten best oil-filled radiators

Ceramic

Blows air over a hot ceramic element, so a small space warms up within minutes. Towers often oscillate.

Best for: Quick heat in a small room or under a desk, when you only need it for a short while.

The ten best ceramic space heaters

Convection

Warms air that rises out of the top and draws cooler air in at the bottom, with no fan noise.

Best for: Keeping a medium-sized room at a steady temperature, quicker off the mark than an oil-filled radiator.

The ten best convection heaters

Before you buy a space heater

Oil-filled, ceramic or convection: which space heater should I buy?

Ceramic heaters warm a small space fast and suit short bursts. Oil-filled radiators take longer to warm up but stay silent and hold their heat, which suits bedrooms and long evenings. Convection heaters sit in between: silent, and quicker to warm a room than an oil-filled radiator.

How much does a space heater cost to run?

Most plug-in space heaters top out at 1,500 watts, which is 1.5 kWh for each hour on full power. At a typical US electricity rate of around 17 cents per kWh, that is about 25 cents an hour. A thermostat cuts the real cost, because the heater cycles off once the room is warm.

What size of heater do I need?

A common rule of thumb is about 10 watts per square foot, so a 1,500-watt heater suits a room of roughly 150 square feet. Drafty rooms, high ceilings and poor insulation need more. No plug-in heater replaces central heating for a whole house.

Are space heaters safe to leave on?

Look for a UL or ETL listing, tip-over protection and overheat protection. Plug the heater straight into a wall outlet, never an extension cord or power strip, keep three feet clear around it, and never cover it. Switch it off when you leave the room or go to sleep unless the maker says it is designed for that.

How do you decide the rankings?

Each type has its own ranked ten, so a product is only ever scored against others of its kind. Scores come from our ranking model, which ranks products on what the review sites say where they cover a type, and otherwise by how happy owners are and holds back any product few owners have rated. Brands can't pay for placement.

How we ranked these space heaters

Each type has its own ranking of ten, so a oil-filled radiator is only ever scored against other oil-filled radiators. Every score comes from our ranking model; no editor sets the order. Where the review sites cover a type, what they say counts for most of each score, weighed with how happy owners are. Where too few cover it, the ranking is led by how happy owners are, holding back any product few owners have rated. Value for money earns its own badge rather than a higher place.

Brands can't pay to be included or to move up.

How we rank, in full