Save up to 40% at Walmart and Amazon

TL;DR: Multiple space heaters are on sale at Walmart and Amazon, saving you up to $22.

The only office thermostat war more volatile than the one in the summer is the one in the winter. Office buildings are known for being dreadfully chilly (like 70 degrees chilly), which CBS found may stem from a 1960s formula tied to men’s higher metabolic rates. As you can guess, incessant shivering doesn’t exactly boost productivity.

But, until the world stops revolving around people who are hot all the time, we will have to get our own damn heaters. Walmart and Amazon have a pretty big collection of space heaters on sale, from personal ones, to oscillating tower versions, to bigger portable radiators to cover that one room in the house that’s always extra chilly.

You’ll be much more prepared for winter with a mini heater on deck. Trust us. Whether it’s a disagreement with roommates over the temperature at home or cold toes at the office, this 10-inch portable heater comes in clutch for floor or desk use.

Storing a heater in the summer and a fan in the winter seems like a lot of unnecessary lifting. This oscillating tower by PureGuardian works as both, and is chic enough that you won’t mind leaving it out year-round anyway. The heat and cool settings as well as the power button can be controlled via the included remote.

This oscillating tower heater from Lasko is a budget-friendly alternative for those who don’t need a built-in fan. The digital interface makes specifying your desired temperature super easy (rather than using a knob with vague settings), and it also comes with a remote to control the temperature without getting up.

In lieu of a real fireplace, this mini electric fireplace heater from Comfort Zone has a 3D flame effect and a bright ember bed to feed your cozy, snowed-in aesthetic. You’ll feel warm just by looking at it, but the 18.25-inch heater is powerful enough to raise a room’s temperature in minutes.

There’s always that one room in the house that’s colder than the rest. When a mini space heater won’t cover the ground you need, this full-room radiant heater by DeLonghi keeps things toasty in rooms up to 250 square feet.