Ranked #5 of 5 · Gaiatop
Gaiatop Mini Space Heater, 500W PTC Ceramic Desk Heater review
A tiny 500W personal heater for one desk, one person.
Marcus Ellery
NATE-certified HVAC technician · 14 years in residential heating · Updated August 2026
7.0
Score4.5 · 8,362 reviews
$14.99$16.99
In Stock
500W PTC45° tip-over cut-offDesk size
What works
- Cheapest way to warm the air right in front of you
- Small enough to leave on a crowded desk
- 45° tip-over and overheat protection
- Warms up in seconds thanks to PTC ceramic
What doesn't
- 500W only warms the air a foot or two away — it will not change how a room feels
- Still a corded desk unit; for the same footprint HeatWell heats the whole room from the wall socket
The verdict
Best for keeping your hands warm at a desk in a cold office. It earns its place in the top five, but it lost ground to the #1 pick on 500w only warms the air a foot or two away — it will not change how a room feels — which is exactly the sort of thing you notice in week three, not on day one.
Price, rating and review count captured 2026-08-10T12:53:00Z from the retailer's product page. These change frequently — the retailer's page is the authority.