A metal tray houses four small candles, which can heat a room for up to five hours before needing a refill.
Egloo shattered its crowd-funding goal on Indiegogo, raking in $105,380 of their $30,000 aim. And it's no surprise why—the design is simple and effective. Just place the candles inside, and you're good to go.
But try not to burn the house down, okay? That could get expensive.