Walmart offers the Mainstays Electric Fan Space Heater in Black or White for $7.88. Choose in-store pickup to dodge the $5.99 shipping fee. That's the lowest price we could find by $6. It features a fan-only setting and tip-over safety switch.

Note: With limited stock varying by ZIP code, select stores offer it for $5 via in-store purchase. (Eligible locations will display this discount on the product page.)

Update: The price has dropped to $5.