What Size Portable Power Station Runs a Gas Furnace in a Blackout?
Your gas furnace won't work in a winter power outage without electricity for the blower fan. See how to power your central furnace safely with a LiFePO4 battery.
By installing a simple $95 single-circuit EZ Generator Switch next to your furnace, you can plug a 1,800W–2,400W portable power station directly into your gas furnace during a winter blackout. Because the furnace thermostat cycles the blower on ~40% of the time (~220W average hourly draw), a 2,048Wh station keeps your whole house warm for 8–10+ hours!
Forgetting that modern ECM/PSC furnace blower motors have a 1,000W–1,300W startup surge and require proper neutral-ground bonding on some furnace flame sensors.
Best Portable Power Stations for a Gas Furnace Blower
Each unit below is rated above the estimated 1200W startup surge, based on manufacturer specs.
EcoFlow RIVER 2 Pro
Multi-night CPAP, 12V camping fridges, Starlink & short fridge backup
Sits between small camping batteries and full home-backup units. 768Wh is enough for several CPAP nights or a 12V camping fridge for more than a day.
- 768Wh capacity with 4 AC outlets at 17.2 lbs
- 0–100% wall recharge in about 70 minutes (EcoFlow spec)
- EPS backup mode with <30ms switchover for routers and CPAPs
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EcoFlow DELTA Pro (3,600Wh)
Multi-day outages, transfer-switch home backup & off-grid cabins
3,600Wh with a 3,600W inverter (7,200W surge) and up to 1,600W of solar input. Expandable to 10.8kWh, but at 99 lbs it's built to roll, not carry.
- 3,600Wh, the largest capacity on our list
- 3,600W continuous / 7,200W surge
- Up to 1,600W solar input; expandable to 10.8kWh with two extra batteries
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Anker SOLIX F2000 (PowerHouse 767)
RVs (TT-30 outlet), easy rolling mobility & whole-room backup
A 2,048Wh unit with wheels and a telescoping handle, plus a NEMA TT-30 RV outlet alongside 4 household AC outlets.
- Wheels and telescoping handle; no lifting needed on flat ground
- NEMA TT-30 RV outlet plus 4 household AC outlets
- 2,400W continuous / 3,600W surge
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Inexpensive Add-Ons for Running a Gas Furnace Blower on Battery
Lets a power station plug into a hardwired furnace. Have an electrician install it.
Measures what your appliance actually draws, so you size from real numbers instead of estimates.
Lets the power station sit where it's convenient without voltage drop on motor loads.
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How Many Hours Will Each Power Station Run a Gas Furnace Blower?
Calculated using 85% real-world AC inverter efficiency and a 40% duty cycle (~220W average hourly consumption).
| Power Station | Battery Capacity | Inverter Output | Estimated Gas Furnace Blower Runtime | Amazon Link |
|---|---|---|---|---|
Jackery Explorer 300 Plus Lightest Pick (Under 10 lbs) | 288 Wh(245Wh usable) | 300W (600W surge) | Requires 550W continuous (Station max: 300W) | Check Price |
EcoFlow RIVER 2 Pro Mid-Size Pick | 768 Wh(653Wh usable) | 800W (1600W surge) | 2.9 hrs | Check Price |
EcoFlow DELTA 2 Best All-Round 1kWh Pick | 1,024 Wh(870Wh usable) | 1800W (2700W surge) | 3.8 hrs | Check Price |
Jackery Explorer 1000 v2 Lightest 1kWh-Class Pick | 1,070 Wh(910Wh usable) | 1500W (3000W surge) | 4 hrs | Check Price |
Anker SOLIX C1000 Fastest Solar Charging (1kWh Class) | 1,056 Wh(898Wh usable) | 1800W (2400W surge) | 3.9 hrs | Check Price |
BLUETTI AC180 Most Capacity (1kWh Class) | 1,152 Wh(979Wh usable) | 1800W (2700W surge) | 4.3 hrs | Check Price |
EcoFlow DELTA 2 Max Best 2kWh Home Backup Pick | 2,048 Wh(1741Wh usable) | 2400W (4800W surge) | 7.6 hrs | Check Price |
Anker SOLIX F2000 (PowerHouse 767) Best Wheeled / RV Pick | 2,048 Wh(1741Wh usable) | 2400W (3600W surge) | 7.6 hrs | Check Price |
Jackery Explorer 2000 Plus Highest Output (2kWh Class) | 2,042 Wh(1736Wh usable) | 3000W (6000W surge) | 7.6 hrs | Check Price |
EcoFlow DELTA Pro (3,600Wh) Largest Capacity on Our List | 3,600 Wh(3060Wh usable) | 3600W (7200W surge) | 13.4 hrs | Check Price |
Gas Furnace Blower Power Station FAQ
How many watts does a gas furnace blower use?
A typical gas / propane home furnace blower motor draws about 550W while running and up to about 1200W for a moment at startup. Averaged over time it uses roughly 220W. Check your appliance's label for its exact rating.
What size power station do I need for a gas furnace blower?
Look for at least 550W continuous output, 1200W surge, and about 4141Wh of capacity for one day (16 hours) of use.
How long will a portable power station run a gas furnace blower?
9 of the 10 power stations we compare can run it. Estimated runtimes range up to about 13.4 hours on the EcoFlow DELTA Pro (3,600Wh), assuming ~85% inverter efficiency.