How Long Will It Run

How long will a Bluetti AC180 run a gas furnace?

About 2.7 hours — 2 h 41 min typically, from 2 h 32 min in the worst case to 2 h 50 min at best. That assumes a gas furnace pulling 600 W for 50% of the time (average 300 W), plus the station's 12 W AC mains socket overhead — 312 W in total out of 837 usable watt-hours.

The gas makes the heat, but the blower that pushes warm air through the ducts is a real motor with a real start-up surge — far more than a British combi boiler. Variable-speed (ECM) blowers usually draw less.

Before you rely on it

A furnace blower is a real motor with a start-up surge, and most furnaces are hard-wired with no plug. Some will not light on a station's floating output because they sense the flame through ground. The furnace guide explains all three problems and the safe way to connect one.

The numbers

Bluetti AC180 · 1,152 Wh · new pack at 20 °C, 10% reserve
SetupAverage drawCautiousTypicalBest case
1 × gas furnace, UK 230 V312 W2 h 32 min2 h 41 min2 h 50 min
2 × gas furnace, UK 230 V612 W———
1 × gas furnace, US 120 V312 W2 h 32 min2 h 41 min2 h 50 min
  • 0.3 nights of eight hours, or 0.11 days of continuous running.
  • Usable energy: 837 Wh of the 1,152 Wh on the box, after chemistry, inverter losses and the reserve.
  • To keep it going for a full 24 hours you would need about 10,303 Wh of rated capacity — 8.9× this station.
  • Start-up: the gas furnace asks for 1,500 W at switch-on against this station's 2,700 W peak — comfortable.

Buy the Bluetti AC180

Where to buy

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If this is for a power cut

Heating is what a battery does worst. In a power cut, warming people rather than rooms goes much further, and none of this needs a socket.

Without a power station: a 20,000 mAh power bank runs a USB heated throw for about 7 h 24 min. See the power bank numbers.

Hot water bottle and a vacuum flask. Boil water while you still can, keep it hot in a flask, and refill the bottle through the night.

Look for: A bottle made to BS 1970 in the UK, and a flask of a litre or more.

Hand warmers. Air-activated packs give hours of heat with no power at all, and a pocketful helps children and older relatives.

Look for: Long-duration packs, and the expiry date on bulk boxes.

Battery carbon monoxide alarm. Anything burning fuel indoors, a boiler relit after an outage included, can produce carbon monoxide you cannot see or smell.

Look for: A sealed long-life battery and EN 50291 certification in the UK (UL 2034 in the US).

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More: How to keep warm in a power cut, and the power cut essentials list (US edition).

What changes the answer

If instead…Typical runtimeChange
The pack is two years old2 h 28 min-8%
The pack is five years old2 h 9 min-20%
It is −10 °C outside2 h 17 min-15%
You run it flat, no reserve2 h 59 min+11%
You keep 20% back2 h 23 min-11%

If you need it to run longer

These run a gas furnace for at least twice as long as the Bluetti AC180 does, cheapest first.

StationWhTypicalIndicative price
Dabbsson DBS23002,3305 h 25 min£1,499 / $1,599
Bluetti Apex 3002,7646 h 22 min£1,799 / $1,699
Anker SOLIX F30003,0727 h 4 min£1,899 / $1,999
Bluetti AC300 + B3003,0727 h 1 min£2,499 / $2,699

The cheapest step up: Dabbsson DBS2300

Amazon and approved-programme links are affiliate links; the site may earn a commission at no extra cost to you. Links marked “official site” are untracked. Prices and stock change constantly — check before you buy.

Smaller options that still work

StationWhTypicalWeightIndicative price
Jackery Explorer 1000 v21,0702 h 31 min10.8 kg£419 / $549
Anker SOLIX C10001,0562 h 28 min12.9 kg£699 / $799
EcoFlow DELTA 21,0242 h 23 min12 kg£549 / $699
EcoFlow DELTA 31,0242 h 23 min12.5 kg£649 / $649