How long will the EcoFlow Delta Pro Ultra X run a space heater?

Q: Will the EcoFlow Delta Pro Ultra X run a space heater?

Yes — the Delta Pro Ultra X runs a space heater comfortably. Its 7200W continuous output easily covers the 1500W draw, with 21600W of surge on tap for startup.

Q: How long will the EcoFlow Delta Pro Ultra X run a space heater?

The EcoFlow Delta Pro Ultra X has 6144 Wh (about 4701 Wh usable at the outlet, estimated). Running a space heater that draws 1500W, it lasts about 3.1 hours on a single full charge.

✓

Will the EcoFlow Delta Pro Ultra X run a space heater?

Yes — the Delta Pro Ultra X runs a space heater comfortably

Its 7200W continuous output easily covers the 1500W draw, with 21600W of surge on tap for startup.

Estimated runtime

about 3.1 hours

on a single full charge

Est. usable (AC): 4,701 Wh

Appliance draw: 1500 W

Continuous output: 7200 W

How we calculated this

We start from the EcoFlow Delta Pro Ultra X's 4,701 Wh of estimated usable energy at the outlet — its 6,144 Wh rating, derated for a safe depth of discharge and ~15% inverter loss — then divide by the space heater's 1500W draw:

4,701 Wh ÷ 1500 W ≈ 3.1 hours

Heads up: a space heater is a motor/compressor load that spikes 2–3× on startup. The EcoFlow Delta Pro Ultra X's 7200W continuous / 21600W surge output has plenty of headroom for that spike.

Real-world runtime varies with temperature, cable losses, and how hard the appliance actually cycles. Treat this as a solid estimate, not a guarantee.

Check Delta Pro Ultra X price → Full Delta Pro Ultra X specs →