Space heaters promise quick comfort, but one common setting quietly drains your wallet while your toes still feel like ice.

Warm up your living room or home office this winter, and maybe save a few bucks on your electric bill while you’re at it.

Ajay has worked in tech journalism for over a decade as a reporter, analyst, product reviewer, and editor. He got his start in consumer tech, breaking Android news at Newsweek before going to PCMag, ...