Can a power station run a gas furnace?
Short answer: a gas furnace still needs electricity for its blower. A 1/2 HP blower needs about 3,150 W surge and 800 W running (chart values). Many stations can start it, but runtime in a cold snap is measured in hours, not days.
Blower power (LIFAN chart)
| Blower | Running W | Additional starting W | Peak needed |
|---|---|---|---|
| Furnace Fan Blower - 1/3 HP | 700 | 1,400 | 2,100 |
| Furnace Fan Blower - 1/2 HP | 800 | 2,350 | 3,150 |
Source: LIFAN wattage chart, checked 2026-10-27. These are chart values for older PSC blower motors. Newer ECM (variable-speed) blowers often draw less, so check your furnace's nameplate.
The math
Runtime (hours) = battery Wh × 0.85 ÷ (running W × cycling %). The cycling % values (25/50/75%) are estimates for mild, cold and very cold days, not measured data. Example: 2,048 Wh, 1/2 HP blower at 50% = 2,048 × 0.85 ÷ (800 × 0.5) = 4.4 h.
Furnace Fan Blower - 1/3 HP: runtime by battery size (estimates)
| Battery | 25% cycling | 50% cycling | 75% cycling |
|---|---|---|---|
| 1,000 Wh | 4.9 h | 2.4 h | 1.6 h |
| 2,000 Wh | 9.7 h | 4.9 h | 3.2 h |
| 3,000 Wh | 14.6 h | 7.3 h | 4.9 h |
| 4,000 Wh | 19.4 h | 9.7 h | 6.5 h |
| 5,000 Wh | 24.3 h | 12.1 h | 8.1 h |
Furnace Fan Blower - 1/2 HP: runtime by battery size (estimates)
| Battery | 25% cycling | 50% cycling | 75% cycling |
|---|---|---|---|
| 1,000 Wh | 4.3 h | 2.1 h | 1.4 h |
| 2,000 Wh | 8.5 h | 4.3 h | 2.8 h |
| 3,000 Wh | 12.8 h | 6.4 h | 4.3 h |
| 4,000 Wh | 17.0 h | 8.5 h | 5.7 h |
| 5,000 Wh | 21.3 h | 10.6 h | 7.1 h |
Verified models by blower size
Furnace Fan Blower - 1/3 HP (surge ≥ 2,100 W)
| Model | Wh | Surge W | Est. runtime at 50% |
|---|---|---|---|
| EcoFlow DELTA 3 Plus | 1,024 | 3,600 | 2.5 h |
| EcoFlow DELTA 3 | 1,024 | 3,600 | 2.5 h |
| Anker SOLIX C1000 Gen 2 | 1,024 | 3,000 | 2.5 h |
| Anker SOLIX C1000X | 1,056 | 2,400 | 2.6 h |
| Jackery Explorer 1000 v2 | 1,070 | 3,000 | 2.6 h |
| BLUETTI AC180 | 1,152 | 2,700 | 2.8 h |
| Jackery Explorer 1000 Plus | 1,264 | 4,000 | 3.1 h |
| BLUETTI AC180P | 1,440 | 2,700 | 3.5 h |
| Jackery Explorer 1500 v2 | 1,536 | 4,000 | 3.7 h |
| Jackery Explorer 2000 v2 | 2,042 | 4,400 | 5.0 h |
| Jackery Explorer 2000 Plus | 2,042 | 6,000 | 5.0 h |
| EcoFlow DELTA 2 Max | 2,048 | 4,800 | 5.0 h |
| Anker SOLIX C2000 Gen 2 | 2,048 | 4,000 | 5.0 h |
| EcoFlow DELTA Pro 3 | 4,096 | 8,000 | 9.9 h |
| Jackery Explorer 5000 Plus | 5,040 | 14,400 | 12.2 h |
Furnace Fan Blower - 1/2 HP (surge ≥ 3,150 W)
| Model | Wh | Surge W | Est. runtime at 50% |
|---|---|---|---|
| EcoFlow DELTA 3 Plus | 1,024 | 3,600 | 2.2 h |
| EcoFlow DELTA 3 | 1,024 | 3,600 | 2.2 h |
| Jackery Explorer 1000 Plus | 1,264 | 4,000 | 2.7 h |
| Jackery Explorer 1500 v2 | 1,536 | 4,000 | 3.3 h |
| Jackery Explorer 2000 v2 | 2,042 | 4,400 | 4.3 h |
| Jackery Explorer 2000 Plus | 2,042 | 6,000 | 4.3 h |
| EcoFlow DELTA 2 Max | 2,048 | 4,800 | 4.4 h |
| Anker SOLIX C2000 Gen 2 | 2,048 | 4,000 | 4.4 h |
| EcoFlow DELTA Pro 3 | 4,096 | 8,000 | 8.7 h |
| Jackery Explorer 5000 Plus | 5,040 | 14,400 | 10.7 h |
Models without a published surge rating are left out. Specs from manufacturer pages; see the comparison table.
Winter outage tips
- Connection: most furnaces are hard-wired, so plan an electrician-installed inlet or transfer switch before the storm.
- Stretch runtime: lower the thermostat a few degrees and close off unused rooms.
- Recharge: winter solar output is low, so plan car or generator recharging for multi-day outages.
- Safety: never run a gas generator indoors or in a garage (carbon monoxide).
Add the fridge and other loads in the calculator → · Runtime calculator · Sump pump
FAQ
Can a power station run a gas furnace?
A gas furnace needs electricity for its blower and controls. The LIFAN chart lists a 1/3 HP furnace blower at 700 W running plus 1,400 W starting (2,100 W peak), and a 1/2 HP blower at 800 W plus 2,350 W (3,150 W peak). A station with enough surge can run it, but most furnaces are hard-wired, so you need an electrician-installed inlet or transfer switch.
How long will a power station run a furnace blower?
It depends on how much the furnace cycles, which depends on outdoor temperature and insulation. At an estimated 50% cycling, a 1/2 HP blower uses about 9,600 Wh per day, so a 2,048 Wh station lasts about 4.4 hours.
Can I plug my furnace into a power station with an extension cord?
Only if the furnace has a factory cord-and-plug connection. Hard-wired furnaces need a licensed electrician to install a transfer switch or power inlet. Never backfeed a house through an outlet.