How long can the Bluetti AC300 + B300K run a Gas furnace blower?
11.2 hours
Formula: (2.8kWh × 0.85 inverter efficiency) ÷ 5.04 kWh/day = 11.2 hours. At continuous 600 W draw (no duty cycle), about 3.9 hours.
What if you add a battery? The AC300 + 2× B300K config jumps to 5.5kWh — roughly 22.4 hours on a Gas furnace blower.
Appliance
Gas furnace blower · 600 W / 1500 W surge
Battery (base)
2.8kWh · 3kW / 6kW surge
Some links may be affiliate links. GridMatch may earn a commission if you buy through them, at no extra cost to you.
Runtime Quick-Check
Runtime Quick-Check
Pick a battery and an appliance — see days of runtime after the 0.85 inverter derate.
11.2 hours
Formula: (2765 Wh × 0.85) ÷ 5.04 kWh/day = 11.2 hours. Continuous draw ≈ 3.9 hours at full load.
Nearest alternatives
Running more than one device?
Open sizing wizard