Feeling a bit chilly, are you? Toes going numb? Lips turning blue? It happens. Whether it’s because of poor insulation or a surprise cold-snap, sometimes our homes just aren’t as cozy as we want them to be. That’s where a space heater can really come in handy. This is especially true if you’ve got a big place. It’s frequently not economical to turn on that gigantic furnace and heat up your entire house, especially if you’re just using one or two rooms for the day. There are a few types of space heaters, though, and each have their merits.

Infrared Heaters

Pumping out way more heat than your typical 1,500-watt unit, this heater features dual heating elements, a remote control, built-in thermostat, and whisper quiet operation. Dr Infrared Heater

Infrared (IR) space heaters are one of the most energy-efficient and high-tech ways to heat a room. IR heaters use infrared red light to heat up physical objects, not the air (which is clear, so it doesn’t catch light). The result is a penetrating heat that feels warm and relaxing all the down to your bones, and they tend to be extremely quiet, not to mention easy on your electric bill.

Circulating Heaters

This slender space heater features a self-regulating ceramic element with overheat protection, and its body stays cool to the touch. Lasko

Circulating heaters are the most common ones you’ll find for sale. If a store only has one type, it’s probably this, and there’s a good reason for that: They do the job, and don’t cost too much. These heaters usually feature a ceramic (or metal coil) element that heats up, and often a fan that blows across it and distributes that hot air, ideally with an oscillating motion. Because of that, this may be a good solution for large rooms where people may be more spread out, as they tend to heat the room evenly.

Radiant Heat

With three heating modes (600W, 900W, and 1,500W) you can economically heat a room and do it completely silently. Aireplus

If you’ve ever seen an old New York apartment (in real life or in the movies) you’re familiar with the look of the accordion-like, old-school radiators. There’s a reason so many places still have them: They’re extremely efficient and long lasting. While apartments used steam from the building’s pipes, the modern space-heater version are filled with oil. Once they heat up, they pump out a ton of heat and do it silently. They’re big and heavy, but they can be wheeled around to where they’re most needed. They’re impressively effective.