How long can the Bluetti FridgePower run a Space heater?
2.3 hours
Formula: (2kWh × 0.85 inverter efficiency) ÷ 18 kWh/day = 2.3 hours. At continuous 1500 W draw (no duty cycle), about 1.1 hours.
What if you add a battery? The + BlueCell 200 config jumps to 4kWh — roughly 4.6 hours on a Space heater.
Appliance
Space heater · 1500 W / 1500 W surge
Battery (base)
2kWh · 1.8kW / 3.6kW surge
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Runtime Quick-Check
Runtime Quick-Check
Pick a battery and an appliance — see days of runtime after the 0.85 inverter derate.
2.3 hours
Formula: (2016 Wh × 0.85) ÷ 18 kWh/day = 2.3 hours. Continuous draw ≈ 1.1 hours at full load.
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