Will a power station run a diesel heater?

Heating Also called: diesel heater, webasto heater, eberspacher heater

Two numbers decide whether a power station runs a diesel air heater, and readers arrive using them interchangeably. Watts are the ceiling on what the inverter can hold at any instant — this load needs 34 W of them while it runs, and 100 W for the first minutes of a start, which is long enough that it is judged against continuous output rather than against a surge ceiling. Watt-hours are how much energy the battery holds. A machine can have plenty of one and not enough of the other.

Of the 26 machines in our library, 26 run it, 0 are a tight fit and 0 are out of reach. Each of those is a calculation against that machine’s continuous output, its surge ceiling and its inverter waveform — not a lookup table — and the reasoning is on every row.

The three numbers a power station is judged against

Running power 34 W 4.0–40 W Official spec · verified 2026-08-01 · high confidence

Start-up surge 100 W engine checks 100 W Official spec · verified 2026-08-01 · high confidence

Duty cycle 100% Official spec · verified 2026-08-01 · medium confidence

The band is the spread across real models in this class, not a tolerance. Size against the top of it unless you know which unit you own.

Start-up figure: Manufacturer-stated

The start-up figure is published by the manufacturer for this device, so it describes the actual hardware rather than a category.

Measured duration 60,000 ms · Official spec · verified 2026-08-01 · high confidence

officialverified 2026-08-01appliance record

What actually decides it

More than one kind of load in one box

This machine contains at least two electrically different things, so neither the resistive rule nor the motor rule describes it on its own. The engine judges each part on its own terms: a minute-scale start-up load is checked against continuous output, where it belongs, and a genuine inrush against the surge ceiling.

What kind of motor is inside

The motor is brushless and driven by its own inverter board, which is why the start-up demand is modest: the electronics ramp the motor rather than connecting it straight to the line.

How long the start-up actually lasts

The start-up load lasts minutes, not milliseconds — a glow plug, not an inrush. No station’s surge rating covers a minute, so the engine checks this demand against CONTINUOUS output instead, where it belongs.

Which power stations run it

Every row is a live calculation against that machine's continuous output, surge ceiling and inverter waveform. Of 26 machines, 26 run it, 0 are a tight fit and 0 are out of reach. The percentage is this load as a share of that machine's continuous output; anything past 82% drops out of the green. Rows are ordered by verdict, then by price — cheapest first inside each band.

EcoFlow RIVER 3 Plus EcoFlow · US 120 V 600 W continuous · 1,200 W surge ceiling 5.7%

BLUETTI Elite 30 V2 BLUETTI · US 120 V 600 W continuous 5.7%

5.7 h — on a full charge, with the station’s own 9.0 W idle draw in the denominator BLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $299 · checked 2026-08-01 Show the working →

Jackery Explorer 300 Plus Jackery · US 120 V 300 W continuous · 600 W surge ceiling 11%

34 Wh per hour — averaged over this load’s duty cycle No runtime in hours: Jackery publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. $299.99 · checked 2026-08-01 Show the working →

BLUETTI Elite 100 V2 BLUETTI · US 120 V 1,800 W continuous · 3,600 W surge ceiling 1.9%

19 h — on a full charge, with the station’s own 10 W idle draw in the denominator $499 · checked 2026-08-01 Show the working →

Jackery Explorer 1000 v2 Jackery · US 120 V 1,500 W continuous · 3,000 W surge ceiling 2.3%

EcoFlow DELTA 3 Plus EcoFlow · US 120 V 1,800 W continuous · 3,600 W surge ceiling 1.9%

Jackery Explorer 2000 Plus Jackery · US 120 V 3,000 W continuous · 6,000 W surge ceiling 1.1%

EcoFlow DELTA 2 Max EcoFlow · US 120 V 2,400 W continuous · 4,800 W surge ceiling 1.4%

Jackery Explorer 1000 Plus Jackery · US 120 V 2,000 W continuous · 4,000 W surge ceiling 1.7%

BLUETTI Elite 200 V2 BLUETTI · US 120 V 2,600 W continuous 1.3%

36 h — on a full charge, with the station’s own 10 W idle draw in the denominator BLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $1,099 · checked 2026-08-01 Show the working →

EcoFlow STREAM Ultra EcoFlow · US 120 V 800 W continuous 4.3%

34 Wh per hour — averaged over this load’s duty cycle No runtime in hours: EcoFlow publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. EcoFlow publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. $1,279 · checked 2026-08-01 Show the working →

EcoFlow DELTA Pro 3 EcoFlow · US 120 V 4,000 W continuous · 8,000 W surge ceiling 0.9%

Anker SOLIX C300 Anker SOLIX · EU 230 V 300 W continuous · 600 W surge ceiling 11%

BLUETTI Elite 30 V2 BLUETTI · EU 230 V 600 W continuous 5.7%

Jackery Explorer 300 Plus Jackery · EU 230 V 300 W continuous · 600 W surge ceiling 11%

EcoFlow RIVER 3 Plus EcoFlow · EU 230 V 600 W continuous · 1,200 W surge ceiling 5.7%

EcoFlow STREAM Ultra EcoFlow · EU 1,200 W continuous 2.8%

BLUETTI Elite 100 V2 BLUETTI · EU 230 V 1,800 W continuous 1.9%

19 h — on a full charge, with the station’s own 10 W idle draw in the denominator BLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €699 · checked 2026-08-01 Show the working →

Jackery Explorer 1000 v2 Jackery · EU 230 V 1,500 W continuous · 3,000 W surge ceiling 2.3%

EcoFlow DELTA 3 Plus EcoFlow · EU 230 V 1,800 W continuous · 3,600 W surge ceiling 1.9%

Anker SOLIX Solarbank 3 E2700 Pro Anker SOLIX · EU 1,200 W continuous 2.8%

34 Wh per hour — averaged over this load’s duty cycle No runtime in hours: Anker SOLIX publishes no depth of discharge or inverter efficiency for this model, so there is no defensible usable-capacity figure to divide. Anker SOLIX publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €999 · checked 2026-08-01 Show the working →

Jackery Explorer 1000 Plus Jackery · EU 230 V 2,000 W continuous · 4,000 W surge ceiling 1.7%

EcoFlow DELTA 2 Max EcoFlow · EU 230 V 2,400 W continuous · 4,800 W surge ceiling 1.4%

BLUETTI Elite 200 V2 BLUETTI · EU 230 V 2,600 W continuous 1.3%

38 h — on a full charge, with the station’s own 13 W idle draw in the denominator BLUETTI publishes no surge rating for this model. The start-up check runs against its continuous output as a conservative floor, which is ours, not a manufacturer specification. €1,299 · checked 2026-08-01 Show the working →

Jackery Explorer 2000 Plus Jackery · EU 230 V 3,000 W continuous · 6,000 W surge ceiling 1.1%

EcoFlow DELTA Pro 3 EcoFlow · EU 230 V 4,000 W continuous · 8,000 W surge ceiling 0.9%

Our pick for this load

EcoFlow RIVER 3 Plus · US 120 V

The cheapest US 120 V machine in the list that runs a diesel air heater outright, and it holds it at 34 Wh per hour.

$259 · price checked 2026-08-01

The buy link is in the bar at the bottom of the screen — one action per page, and it goes to the merchant we last checked the price at.

Everything else we hold on this load

Each figure carries the tier it came from and the date it was checked. Sizing guidance is kept apart from measured draw on purpose: one says what the machine pulls, the other says what a manufacturer or a standard thinks you should buy for it.

Measured and published draw

Standby draw 4 W Official spec · verified 2026-08-01 · high confidence

Cycle period 10 min Official spec · verified 2026-08-01 · medium confidence

Sizing guidance — not a draw figure

Minimum continuous output 100 W Official spec · verified 2026-08-01 · high confidence

A sizing figure, not a draw: it is what this class needs a machine to be RATED at, headroom included.

Minimum surge capability 180 W Official spec · verified 2026-08-01 · medium confidence

The start-up headroom this class needs an inverter to have. Where it comes from a manufacturer’s inverter recommendation rather than a measured inrush, it is deliberately generous.

Usable energy for one night 272 Wh Official spec · verified 2026-08-01 · medium confidence

Where to go next

From the Knowledge channel

A diesel air heater has a guide of its own: the same records this page computes from, worked through in prose with room for the reasoning a table can only summarise — Why does my power station lose capacity in the cold?

Questions people ask about this load

How many watts does a diesel air heater use?

34 W while it is running, and 4.0–40 W across the models in this class, with 100 W demanded at the instant it starts. Those are different questions and most pages answer only the first. The running figure decides whether a machine can hold it; the start-up figure decides whether it can get it going at all, and it is usually the one that fails. The start-up figure here is the manufacturer’s own..

What size power station do I need for a diesel air heater?

For a diesel air heater, the EcoFlow RIVER 3 Plus (US 120 V) is the cheapest machine in our library that runs it, at 600 W continuous · 1,200 W surge ceiling and $259 against a running draw of 34 W. That is a verdict computed from this load’s running watts, its start-up demand and the inverter waveform — not a rule of thumb about doubling the wattage. 26 of 26 machines clear it, 0 are a tight fit, and the tight ones are tight for reasons the list states individually.

How long will a power station run a diesel air heater?

It depends entirely on the machine, which is the part most pages skip. Against 34 W of running draw, our figures put the BLUETTI Elite 30 V2 at about 5.7 h, and the BLUETTI Elite 100 V2 at about 19 h. Those hours come from usable-capacity figures derived from the manufacturers’ own published depth of discharge and inverter efficiency, with each machine’s idle draw in the denominator — not from dividing a nameplate watt-hour number by a label wattage. Most machines in the list carry no hours at all: their brands publish nothing that makes a usable-capacity figure defensible, so those rows give an energy rate instead of a number we would have had to invent.

Why is the start-up of a diesel air heater judged against continuous output?

Because it is not a surge. The start-up figure is published by the manufacturer for this device, so it describes the actual hardware rather than a category. The start-up demand is 100 W, and it lasts minutes rather than milliseconds — no station's surge rating covers a minute, so checking it against one would be measuring the wrong thing. The engine puts this demand against continuous output instead, where a load of that length actually belongs.

Which power stations run a diesel air heater?

26 of the 26 we hold, listed above cheapest-first within each verdict band, starting with the EcoFlow RIVER 3 Plus. 0 more are a tight fit on a diesel air heater — they run it, but with less headroom than we are willing to call comfortable — and 0 cannot. Every one of those is a live calculation against that machine's own record, and opening a row shows the working.