The three checks

Furnace blower on its own, with nothing else plugged in, against the published ratings of the EcoFlow DELTA Pro 3.

Furnace blower on the EcoFlow DELTA Pro 3: power checks
CheckNeedsStation hasResult
Running watts against continuous output550 W4,000 WPasses
Starting watts against surge rating1,200 W8,000 WPasses
A full day at 12 h a day6,600 Wh3,482 Wh usableFails

How long it runs across models

The appliance class spans a range of models. Running time on a full charge at the low, typical and high figure in the data:

Furnace blower on the EcoFlow DELTA Pro 3, low to high
CaseRunning wattsRunning time
Low end of the class300 W11.6 h
Typical550 W6.3 h
High end of the class875 W4.0 h

Watts vary by model and age. Check the label on your own appliance and enter it for an exact answer.

Keeping up on solar

At 4 peak sun hours, counting 75% of the panel rating: 200 W of panels bring in about 600 Wh a day, 9% of the 6,600 Wh it uses at 12 h a day. 2,600 W of panels bring in about 7,800 Wh a day, more than the 6,600 Wh it uses at 12 h a day, so the station keeps up.

Other options

The smallest EcoFlow model in the data that is enough for a full day of a gas furnace blower is the EcoFlow DELTA Pro Ultra X (12,288 Wh). The nearest capacities from any brand:

The smallest EcoFlow model that is enough, then the stations closest in capacity to the EcoFlow DELTA Pro 3, with a gas furnace blower
Power stationCapacityVerdictRunning time
EcoFlow DELTA Pro Ultra X12,288 WhEnough19.0 h
Anker SOLIX F38003,840 WhRuns it, but not long enough5.9 h
Anker SOLIX F3800 Plus3,840 WhRuns it, but not long enough5.9 h
Goal Zero Yeti PRO 40003,994 WhRuns it, but not long enough6.2 h

The EcoFlow DELTA Pro 3

Everything the EcoFlow DELTA Pro 3 runs, its recharge times and full specifications

EcoFlow's page for the DELTA Pro 3 (opens in a new tab)

Enough Watts may earn a commission when you buy through links on this page. It never changes the math or the ranking.