Pellet stove: how much battery you need1
Pellet stove draws about 100 W (100 W range), runs 100% of the time and uses 2400 Wh per day. Start-up surge: 400 W.
Estimate: the auger and fans draw about 100 W; the igniter adds a few hundred watts for minutes at start-up.
Battery needed
| Hours | Wh | Battery (Wh) | Inverter (W) |
|---|---|---|---|
| For 8 hours | 800 | 1213 | 111 / 400 |
| For 24 hours | 2400 | 3637 | 111 / 400 |
| For 72 hours | 7200 | 10910 | 111 / 400 |
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Stations that fit (24 h)
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FAQ
How many watts does a Pellet stove use?
Typically 100 W while running, with a range of 100 W depending on model and age. Start-up surge can reach 400 W.
How long will a 1000 Wh power station run a Pellet stove?
About 6.6 hours on the clock, allowing for the 100% duty cycle, inverter losses and a 20% reserve.
What size power station do I need for a Pellet stove overnight (8 h)?
About 1213 Wh of battery and an inverter rated at least 111 W continuous with 400 W surge.
Can I run a Pellet stove on solar during an outage?
You need roughly 1600 W of panels in winter to replace a day's use (2400 Wh), charging through a station with a big enough MPPT input.
Other appliances
1 Approximate values: estimated from motor or heater power and typical figures published online, not from a manufacturer chart. Check your appliance label.
Inverter efficiency 88%, usable depth of discharge 90%, reserve 20%. Full method: How we calculate.