Will an EcoFlow DELTA Pro 3 run an aquarium heater? (EU 230 V)
Yes, it runs it — no usable-capacity figure see why below ↓
Every check passes. Nothing here has a locked rotor to publish an inrush figure for, so the absence of one is a fact about the hardware rather than a hole in the library.
Official spec + Derived by WattPairverified 2026-08-01EU 230 V unit × aquarium heater
Running100 Wof4,000 Wcontinuous output
0 – 4,000 W across the rails above
No start-up rail: this load has no locked rotor to publish an inrush for, so no start-up demand was checked.
Two numbers decide this, and readers use them interchangeably: watts are the ceiling on what the inverter holds at any instant, watt-hours are how much energy the battery holds. A machine can have plenty of one and not enough of the other.
The verdict is a calculation, not a lookup. What it will not do is print a runtime, and the reason is specific: we have found no published depth of discharge or inverter efficiency for the EU 230 V build, so there is no usable-capacity figure to divide.
This page answers an electrical question, not a fishkeeping one.
Where this page puts hours on a pairing, that number is how long a power station’s battery lasts running this heater’s wattage — an electricity number, not a judgment about whether the animals in the tank are safe. Hours here means hours of power, nothing more.
Where a verdict below reads a tight fit — the amber triangle — read it as don’t rely on this pairing, not as a compromise that will probably hold. It means the load doesn’t clear that station’s numbers with confidence — it isn’t a passing grade with an asterisk.
What to do when the power goes out is a fishkeeping question, and it’s outside what this site answers — a tank’s own care sheet, a local fish store, or an aquarium-keeping community can say what a given species and setup actually need. If keeping the heater running through an outage matters enough to plan for, the usual paths are a generator sized for the load or a written outage plan; this page can help with the electricity math for either one.
Where those numbers come from
A blank is never left blank. A field we have found no figure for says so, and a field whose sources disagree — two documents, or one document with itself — says that instead of picking one.
No usable-capacity figure for this machine
EcoFlow states a nameplate watt-hour number for it, and we have found no published depth of discharge or inverter efficiency for the EU 230 V build. Dividing the nameplate by this load would be wrong by 20–35% in the flattering direction, so this page shows the nameplate for what it is and refuses to turn it into hours.
Missing: station.usable_capacity_wh
Energy rate instead of a runtime
100 Wh per hour averaged over this load’s duty cycleThis number needs no battery figure at all, which is why this page can give it when it cannot give hours. Divide any usable-capacity figure you trust by it and you have your own runtime, with our arithmetic visible instead of hidden.
What an aquarium heater demands
What the EcoFlow DELTA Pro 3 offers
Where to buy
Where to buy the EcoFlow DELTA Pro 3
Prices checked 2026-08-17
If this is not the pairing
BLUETTI Elite 30 V2 (EU 230 V) reaches the same conclusion on an aquarium heater at 600 W continuous, and it is €219. Cheaper is only cheaper when the answer is the same — this one is. See that pairing →
The same load on the machines beside it
The same machine on the loads beside it
Where to go next
An aquarium heater has a dedicated guide: the same records this page computes from, worked through in prose with room for the reasoning a table can only summarise — Why do some appliances change wattage between the US and Europe, and some don’t?