Why does the Goal Zero Yeti 1000 (6th Gen) run a space heater for so little time?

Because it draws a lot of power. A space heater averages about 750 W (1,500 W running, on about 50% of the time), and the 998 Wh battery gives about 848 Wh after inverter losses. That is 88% of the battery an hour.

What would run a space heater longer?

A bigger battery: the 2,042 Wh Jackery Explorer 2000 v2 about 2.5 hours and the 2,048 Wh Anker SOLIX C2000 Gen 2 about 2.5 hours.

Goal Zero · Will it run?

Can the Goal Zero Yeti 1000 (6th Gen) run a space heater (1500W)?

Published October 12, 2026

Short answerYes, briefly

Yes, but only for about 1 hour. A space heater averages about 750 W, and the Goal Zero Yeti 1000 (6th Gen) holds 998 Wh (about 848 Wh usable after inverter losses), so the battery runs down fast. Fine for a short job, not for a whole day.

Add your other devices

Key numbers

Runtime: 1 hr; from a full charge
Battery used per hour: 88%; at 750 W average

Space heater (1500W)

Running: 1,500 W; 750–1500 W range
Start-up: 1,500 W
Average: 750 W; on 50% of the time

Goal Zero Yeti 1000 (6th Gen)

Battery: 998 Wh; about 848 Wh usable
Output: 2,000 W; continuous
Surge: 3,600 W; start-up peak

How we worked it out: 998 Wh × 0.85 ÷ 750 W average (1,500 W × 0.5 duty) = about 1 hour. The 0.85 covers inverter and battery losses. We do not test units ourselves; the numbers come from the official spec sheets and typical device draws. How we pick

Goal Zero Yeti 1000 (6th Gen)

998 Wh · 2,000 W output · 3,600 W surge · 35.3 lb

Full specs and runtimes

Check price on Amazon Check price at Goal Zero

We may earn a commission if you buy through these links. It doesn’t change your price. How we make money

What else the Goal Zero Yeti 1000 (6th Gen) runs

One device at a time, from a full charge.

Other power stations for a space heater

The nearest sizes that run it longer.

Keep going

Real runtime depends on the model you own, room temperature and battery age. The 1 hour above is an estimate, not a measured result.

Common questions

Why does the Goal Zero Yeti 1000 (6th Gen) run a space heater for so little time?: Because it draws a lot of power. A space heater averages about 750 W (1,500 W running, on about 50% of the time), and the 998 Wh battery gives about 848 Wh after inverter losses. That is 88% of the battery an hour.
What would run a space heater longer?: A bigger battery: the 2,042 Wh Jackery Explorer 2000 v2 about 2.5 hours and the 2,048 Wh Anker SOLIX C2000 Gen 2 about 2.5 hours.