Runtime evidence · sourced load
Yes. 8 sourced stations in our current catalog clear the capacity and inverter checks for this load.
01 · Runtime ladder
Nominal capacity × depth of discharge × inverter efficiency ÷ sourced average draw.
| Capacity class | Estimated runtime | Evidence |
|---|---|---|
| 300 Whstep 1 | 1 hr | Furnace blower (1,000 CFM ECM) load · 2026-07-20 |
| 500 Whstep 2 | 1.6 hr | Furnace blower (1,000 CFM ECM) load · 2026-07-20 |
| 1,000 Whstep 3 | 3.3 hr | Furnace blower (1,000 CFM ECM) load · 2026-07-20 |
| 2,000 Whstep 4 | 6.6 hr | Furnace blower (1,000 CFM ECM) load · 2026-07-20 |
These are comparison projections, not a promise. Temperature, inverter behavior, cycling, and the individual station's measured delivered capacity can change real runtime.
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02 · Passing stations
Critical-load fit
Why it fits
6,967 W above the plan's running load (7,200 W continuous output)
Main compromise
4,800 W below the highest output reserve across 8 eligible models
Amazon offer checked 2026-07-25
Balanced value
Why it fits
$2,000 current tracked price
Main compromise
101 min slower than the quickest sourced AC recharge (6 of 8 eligible models have this sourced value)
Amazon offer checked 2026-07-25
Maximum useful reserve
Why it fits
89.7 projected runtime hours
Main compromise
2,560 Wh below the largest sourced expanded reserve across 8 eligible models
This ordered data view is separate from the three recommended buying strategies above.
Runtime uses each linked model's sourced capacity and output data; open its dossier for provenance.
Solar effect
Computed with this model's sourced solar-input limit and BatteryRank's published harvest assumptions. Check the solar method → · Model sources →
03 · Evidence record