The disadvantages of a pellet stove eight real drawbacks: it needs electricity, it makes audible noise, it requires weekly maintenance, it heats up more slowly than gas, you need a dry storage space for the pellets, installation costs are on top of the price of the boiler, filling it creates dust, and an incorrectly sized boiler performs poorly on a consistent basis. It is this last point that is the cause of most disappointments.
We sell pellet stoves. We’re writing this article anyway, because the question is asked so often that the answer needs to be available somewhere. And we’d rather it came from us than be a half-baked, incomplete version from someone else.
Disadvantage 1: it doesn’t work without electricity
A pellet stove It is an electric appliance. The auger feeds in pellets, the ignition resistor starts the fire and the fan regulates the combustion air. If there is a power cut, your heating will stop working, even if the tank is full.
The power consumption itself is low: around 100 watts during operation, and briefly 300 to 400 watts when igniting. Over the course of a season, this amounts to a few tens of euros.
Where this is decisive: if the stove is your only source of heating, or if you experience frequent power cuts. There are pellet stoves which operate without electricity (natural draught, gravity-fed), but which are less flexible in terms of control.
Disadvantage 2: it’s not quiet
This is what surprises buyers the most. You’ll hear three sounds: the fan as a constant hum, the auger as a soft rattling every few seconds, and the pellets falling into the burner pot.
| Situation | Noise level | Similar to |
|---|---|---|
| Lowest level | approximately 38 to 42 dB | fridge |
| Average position | approximately 43 to 47 dB | light rain |
| Full capacity | approximately 48 to 52 dB | cooker hood, low setting |
Most people get used to it within a few days. In an open-plan living area where you watch television in the evening, or in a bedroom, it remains noticeable.
What helps: A heater that can operate at a lower setting is quieter. A correctly sized unit is therefore also a quieter unit. Units with a larger heat exchanger and a slower fan are noticeably quieter than the cheapest models.
Drawback 3: there really is weekly maintenance
| Task | Frequency | Time |
|---|---|---|
| Empty the ash pan | weekly to fortnightly | 2 minutes |
| Empty the burner pot, scrape open the air holes | weekly | 5 minutes |
| Windscreen cleaning | weekly | 2 minutes |
| Brushing a heat exchanger | monthly | 10 minutes |
| Full servicing by a qualified technician | annually | appointment |
| Flue sweep | annually, as required by law | appointment |
If you skip this, your efficiency will drop, your pellet consumption will rise and the risk of faults will increase. For annual maintenance and sweeping, please contact Pellet Stove Care.
Disadvantage 4: it takes longer to heat up than gas
It takes fifteen to twenty minutes from a cold start to full heat: ignition, build-up, and the fan reaching operating temperature. A gas boiler does this in two minutes.
Anyone who programmes the heater won’t notice, as it simply switches on half an hour earlier. Anyone who wants the heating to come on spontaneously will have to get used to it.
Disadvantage 5: you need storage space
A full pallet of pellets weighs approximately 975 kg and occupies a floor area of roughly 1.2 by 0.8 metres. It must be stored indoors in a dry place.
Anyone without a garage or storage room buys by the bag or by half a pallet and therefore consistently pays more per kilo. In a flat with no storage space, that is a genuine concern.
Drawback 6: installation costs are in addition to the cost of the appliance
This is the drawback that is most often underestimated when comparing prices.
| Cost item | Indications |
|---|---|
| Device | 1,200 to 4,500 euros |
| Flue, depending on the situation | 600 to 2,000 euros |
| Installation and connection | 300 to 800 euros |
| Any chimney renovation or lining | 500 to 2,500 euros |
A stove costing 1,500 euros can therefore easily cost 3,000 euros to install. Always ask for a quote for the whole job, not just for the appliance itself.
Drawback 7: filling it creates dust
Even with good-quality pellets, there’s a layer of sawdust at the bottom of every bag. When you empty the bag, it comes loose. You’ll notice it in a newly furnished living room.
What helps: Certified pellets with a mechanical durability of at least 98 per cent crumble less. Empty the bag gently, leaving the final layer of sawdust inside.
Drawback 8: an incorrectly sized stove performs poorly
This is not a drawback of the technology itself, but of the purchase, and it is the main cause of disappointment.
A 12 kW stove in a living room that requires 6 kW has no choice but to run continuously at its lowest setting. A pellet stove is not designed for that. The result: incomplete combustion, a sluggish orange flame, soot on the glass, a lot of ash, a burner pot that quickly becomes clogged with soot, and higher fuel consumption than expected.
Anyone who then reads online that pellet stoves ‘Requiring a lot of maintenance and producing a lot of ash’ – this describes his own situation, whilst the problem actually lay with the sizing. So, before you make your choice, read up on how to calculate the correct power output.
Why do people get rid of their pellet stoves?
If we list the most frequently cited reasons, three of them keep cropping up:
- The device was too big. See drawback 8. This is by far the number one drawback.
- The sound was a bit of a let-down. This is often due to an oversized heater, as it runs more noisily.
- The maintenance requirements were underestimated. Anyone thinking they can replace a gas boiler with something just as low-maintenance is in for a disappointment.
What’s striking is that none of the three is about the fuel or the costs. In each case, it’s about expectations that turned out to be wrong from the outset.
Something that is often cited as a drawback, but isn’t
“Pellets have become expensive”
The 2022 peak affected the entire energy market. Historically, pellet prices have fluctuated less than those of gas or heating oil, as they follow the timber market. Furthermore, those who buy in the summer pay 10 to 20 per cent less than the winter price.
“Pellet stoves are to be banned”
Regulations are becoming stricter on emissions from appliances, not on the fuel itself. This mainly affects old wood-burning stoves and open fires. A modern pellet stove more than meets the current European ecodesign requirements.
“You have to keep topping it up”
The tank usually holds between 15 and 30 kg, which is enough for one to three days. Refilling takes just a minute.
For whom is a pellet stove not the right choice?
| Situation | Why it’s a let-down | Better |
|---|---|---|
| New-build property with underfloor heating | A heat pump achieves a lower cost per kWh there | Heat pump |
| Flat without a storage room | No pellet storage, so always the highest price per kilo | Heat pump or infrared |
| No flue option | The installation cost eats into the profit | Electric |
| You want zero maintenance | Weekly tasks are part of the job | Gas or heat pump |
| Bedroom or quiet workspace | The noise remains noticeable | Radiator or infrared |
| Frequent power cuts | No electricity, no heating | Wood stove |
And for whom, then?
A pellet stove is ideal for existing homes with traditional radiators where a heat pump performs poorly, for homes with an existing fireplace, and for those who wish to heat a large living space comfortably without heating the whole house. There is simply no other combination of automatic control, programmability and a visible fire.
Take a look full range of pellet stoves or compare with our wood stoves.
Frequently Asked Questions
What are the disadvantages of a pellet stove?
Dependence on the mains supply, audible noise from the fan and auger, weekly maintenance, a start-up time of fifteen to twenty minutes, the need for dry pellet storage, installation costs on top of the price of the appliance, dust during refilling, and the risk of the appliance being incorrectly sized.
Why do people get rid of their pellet stoves?
Usually because the appliance was too big for the room, meaning it ran constantly at minimum power, resulting in poor combustion, a lot of ash and more noise. This is followed by disappointment at the noise and the amount of maintenance required.
Is heating with a pellet stove expensive?
The cost of fuel is around 9 to 10 cents per kWh, comparable to natural gas. What unexpectedly drives up the cost is an oversized appliance, overdue maintenance or damp pellets.
Do neighbours find pellet stoves a nuisance?
Usually not, but it is possible. The flue gas fan makes a faint humming noise outside, and at low chimney If the wind is unfavourable, smoke extraction can be a problem. A correctly sized flue at a sufficient height solves this problem in practice.
Do pellet stoves still have a future?
For existing homes with traditional radiators, it remains one of the few affordable renewable options. In new-build properties, the market is shifting towards heat pumps. Emissions standards are becoming stricter, which mainly affects old wood-burning stoves rather than pellet technology.
Is it still worth buying a pellet stove?
That depends on what you’re replacing and on your home. If you’re replacing direct electric heating or using it as a supplementary heat source in an older property, it’s certainly worth it financially. If you’re replacing a modern gas boiler in a well-insulated new-build, the benefits lie mainly in comfort and independence, not in saving money.
What is the average lifespan of a pellet stove?
With proper maintenance, fifteen to twenty years. The parts that need replacing sooner are the ignition resistor (after three to six years), the flue gas fan and the door seal.
