Appliances › Pumps, Tools & Off-Grid
What size power station runs a dehumidifier?
A compressor load — keeps a basement dry; cycles like a fridge.
Need to run it alongside other things? Add it to the full sizing tool with the rest of your load.
What size you need for 8.0 h
Running watts (everything on at once) = 500 W
Surge watts (worst single startup + the rest running) = 900 W
Average draw (cyclic loads counted by their duty cycle) = 300 W
Watt-hours = 300 W × 8.0 h ÷ 90% usable reserve = 2,667 Wh
Can a specific unit run a dehumidifier?
43 of the units we track deliver enough watts to run a dehumidifier. Check a specific one for the runtime and the full verdict:
Common questions
What size power station do I need to run a dehumidifier?
A dehumidifier draws about 500 W running, with a startup surge near 900 W. So you want a unit with at least 500 W continuous output and 900 W+ surge. For 8.0 h of runtime that's roughly 2,667 Wh of capacity — the Bluetti Apex 300 is the smallest unit that clears all of it.
How many watts does a dehumidifier use?
About 500 W while running, spiking to roughly 900 W on startup. It only draws power about 60% of the time, so over an outage its energy use is well below 500 W × the hours — which is why a modest battery lasts longer than you'd expect.
Sources: Dehumidifier wattage — Standard appliance-wattage / generator-sizing charts (representative values; verify your nameplate); station specs — manufacturer published specifications (compiled 2026-08-10; approximate). Informational only — a computed sizing estimate from published appliance-wattage charts and manufacturer station specs. It is not an electrical guarantee. For hardwired or whole-home backup, transfer switches, or any permanent install, consult a licensed electrician.