How a pellet stove actually works

You fill the hopper in the morning, set the temperature you want, and get on with your day. That is most of what owning a pellet stove feels like. But if you are about to put one in your home, it is worth knowing what actually happens inside the box — because the way it works is exactly why it is so easy to live with.

Here is the path a pellet takes, from the bag to warm air in your living room.

From the hopper to the fire

The hopper is the storage bin built into the top of the stove. You tear open a bag of pellets, pour them in, and close the lid — that is the only manual step. Below the hopper sits the auger: a slow-turning steel screw that carries pellets downward, a few at a time.

This is the part that changes the daily routine compared to wood. You never feed the fire yourself. Every few seconds, the auger drops a measured dose of pellets into the burn pot, and the stove decides how big that dose should be.

A small, intense fire

The burn pot is a small steel cup with holes for air. At startup, an electric igniter glows until the first pellets catch, and a fan pulls in exactly the air the fire needs — no more, no less. Because both the fuel and the airflow are metered, the pellets burn almost completely. On models like the 8KW stove, that adds up to 95% efficiency — meaning nearly all the heat in the fuel ends up in your house instead of the chimney.

The fire itself stays small and contained behind the glass. You see it, but you never poke it.

Turning fire into heat you can feel

The hot gases from the burn pot do not rush straight up the flue. First they pass through a heat exchanger — a set of metal channels — while a second fan pushes room air across the hot side and sends it out warm into the room. By the time the smoke leaves the house, most of its heat has stayed with you.

On the 8KW stove, that warm air covers 40–100 m², and one full hopper burns for 10–14 hours. Hydro models do the same trick with water instead of air, feeding the radiators around the house — which is what makes pellet heating workable in larger homes, not just single rooms.

The thermostat does the thinking

You set the temperature you want — say 22 degrees — and the control board takes it from there. It speeds the auger up when the room is cold and slows it to a quiet idle once the room is warm, adjusting the fans to match. You do not tend the fire; the stove does. On supported models, a Wi-Fi app lets you do the same from your phone before you get home.

This metering is also where the savings come from. The stove only burns what the room actually asks for, hour by hour — which is how a pellet stove saves up to 70% of winter fuel costs.

The honest part: it needs electricity

The auger motor, the igniter, the fans, and the control board all run on electricity. No power means no stove — it shuts down safely, but it will not heat until the current is back. In Lebanon, that is worth planning for before winter, not during it.

One practical note: pellet stoves need electricity for the igniter, the feed and the fan. With Lebanon’s power cuts, plan the stove onto your UPS or generator line before winter — the draw is modest, and you can message us to size the backup for your model.