Bonne chaudière, elle fait le job. La livraison était dans les temps, pas de dégât à l'arrivée. Par contre, j'ai dû re-regarder la notice plusieurs fois pour l'installer correctement.
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Price
€4,465.30€6,379.00-30 % · You save €1,913.70
Incl. 20% VAT (UK orders are priced without VAT at checkout) · Free delivery · Dispatched within 3 to 7 days
Why are our prices the lowest on the market?
- Wholesale pricesWe buy in bulk from our wholesalers, on the terms our trade agreements allow us to obtain. That accounts for most of the gap with the recommended retail price.
- No card feesWe only accept bank transfers. The commission charged on every card payment disappears, and we pass that saving on in the price. That is also why we do not offer card payment: it would make every order more expensive.
- Shipped from our warehouseNo middleman, no shop or showroom to run: your order leaves directly from our premises.
Appliances are new and factory-sealed, with the 2-year legal warranty that we provide ourselves. Where our products come from
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- Free delivery to France, Belgium, Germany and Italy
- Secure payment by bank transfer
- 30 days to change your mind, free returns
ExtraflameHighlights
PK20 Pellet Boiler
- 4.3/5 · 137 reviews
- 2-year legal guarantee
- Delivered in 3 to 7 days
- 30 days to change your mind
Description
The Extraflame PK20 Pellet Boiler wood stove delivers 20 kW and heats up to 574 m³ (approximately 200 m²).
What area can it heat?
It is sized for a volume of around 574 m³, which corresponds to about 200 m² in a typical home. Its nominal power is 20 kW. The actual heated area depends on the insulation of the dwelling and air circulation between rooms.
What is its efficiency?
The declared efficiency is 93.3%, meaning the proportion of the fuel’s energy actually converted into heat. The appliance is rated A+ for energy efficiency. A high efficiency directly results in lower wood pellet consumption for the same comfort level.
How long does it operate without refilling?
The hopper holds 75 kg of pellets. The maximum autonomy announced reaches 76 hours at low output. In practice, the duration depends on the power required: the higher the temperature setting, the greater the consumption.
What should be planned for installation?
The flue outlet is 100 mm: the flue pipe and lining must match this diameter. The appliance weighs 295 kg; two people are recommended for installation. Installation and connection must be carried out by a qualified professional, which is a condition of the manufacturer’s warranty and your home insurance.
Specifications
Performance
- Heating volume (m3)
- 574
- Heating surface (m²)
- 200
- Filter heating surface (m²)
- From 100 to 200
Emissions and labels
- Average CO₂ emission (%)
- 14,5 - 5,7
- Average CO emission at 13% O₂ (mg/m³)
- 9 - 255
- Average NOx emission at 13% O₂ (mg/m³)
- 115 - 90
- Average VOC emission at 13% O₂ (mg/m³)
- 5 - 11
- Average dust emission at 13% O₂ (mg/m³)
- 3,5 - 22
- Seasonal emissions CO / NOx / VOC / dust (mg/m³)
- 300 / 129 / 13 / 26
- Average CO emission at 10% O₂ (mg/m³)
- 12 - 350
- Average NOx emission at 10% O₂ (mg/m³)
- 158 - 124
- Average VOC emission at 10% O₂ (mg/m³)
- 6 - 15
- Average dust emission at 10% O₂ (mg/m³)
- 5 - 30
Connections and installation
- Water flow resistance (mbar)
- 105.8 for ΔT=10K (10,580 Pa) - 26.4 for ΔT=20K (2,640 Pa)
Power supply
- Max electrical power (W)
- 540 (ignition) - 25 running - 2 standby
- Auxiliary electrical consumption (W)
- 25 at nominal power - 20 at reduced load - 2 standby
Standards and warranty
- Reference
- 1202300
Other specifications
- Flue outlet diameter (mm)
- 100
- Efficiency (%)
- 93,3
- Pellet hopper (kg)
- 75
- Heat exchanger capacity (L)
- 46
- Energy class
- A+
- Height (cm)
- 139,8
- Width (cm)
- 82,2
- Depth (cm)
- 74,5
- Warranty (year)
- 2
- Max thermal power (kW)
- 20
- Pellet consumption (kg/h)
- 1,0 - 4,5
- Room-sealed installation
- No
- Max nominal power (kW)
- 20
- Colour
- Grey
- Minimum thermal power (kW)
- 4,4
- Net weight (kg)
- 295
- Pellet hopper capacity (L)
- 119
- Max autonomy (h)
- 76
- Min autonomy (h)
- 17
- Minimum draught (Pa)
- 5 (nominal) - 3 (partial)
- Flue gas temperature (°C)
- 121 (nominal) - 69 (partial)
- Air intake diameter (mm)
- 48
- Heating flow / return
- 1" (3 bar valve: 1/2")
- Maximum operating pressure (bar)
- 2.5 (250 kPa)
- Water adjustment range (°C)
- 65 to 80
- Minimum return temperature (°C)
- 55
- Pump head height (m)
- 6
- Power supply
- 230 V - 50 Hz
- Seasonal energy efficiency (%)
- 83
- Boiler class (EN 303-5)
- 5
- Standard
- EN 303-5:2021+A1:2022 - TÜV Rheinland NB 2456
- Loading door (mm)
- 306 x 400
- Input thermal power (kW)
- 21.5 (nominal) - 4.7 (partial)
- Flue gas mass flow (kg/h)
- 36,0 - 20,5
- Energy efficiency index
- 122
- Boiler category
- 1 - non-condensing
- Test reports
- K39622026T1 and K39622026T2 dated 05/05/2026
- Notified body
- TÜV Rheinland Energy & Environment GmbH - NB 2456
- Fuel standard
- Wood pellets EN ISO 17225-2:2014
Documentation
Frequently asked questions
What area can it heat?
It is designed for a volume of about 574 m³, or nearly 200 m². The result depends on the dwelling’s insulation and air circulation.
What is its autonomy?
The hopper holds 75 kg of pellets, for a maximum announced autonomy of 76 hours. This decreases as the power demand increases.
Is a professional needed for installation?
Yes. Connection to the flue (100 mm outlet) must be done by a qualified installer: this is a condition of the manufacturer’s warranty and your insurance coverage.
Customer reviews
All shop reviewsAverage rating
4.3
from 137 reviews
- 5 stars49
- 4 stars79
- 3 stars9
- 2 stars0
- 1 star0
93% of reviews give 4 or 5 stars
1 reviews with customer photos
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Each review is about the product shown on its card.
Enfin une poêle qui me fait économiser sur mes factures de chauffage. La température monte vite, et l'installation était assez simple finalement.
- Anne-Marie A.
Super poêle, elle chauffe toute la maison en un rien de temps ! J’ai galéré un peu pour la monter, mais finalement c'était pas si compliqué.
- Romain V.
Trop contente de ma poêle ! En plus, elle est esthétique dans mon salon. Aucuns soucis pour l’installer, par contre elle est lourde, donc mieux vaut être deux.
Très bon rapport qualité-prix. J'ai reçu le poêle avec une petite bosse sur le coin, mais ça ne se voit pas trop. Il fait du bruit au départ, mais après ça va.
- Mathieu Q.
Pas mal du tout, mais la livraison a pris un peu plus de temps que prévu. Le bruit est raisonnable, mais on l'entend quand même un peu dans une pièce fermée.
- Raphaël U.
Livraison assez rapide mais le carton était un peu abîmé. En plus, il fait un peut de bruit quand il s’allume, ça peut déranger la nuit.
- Jacques S.
Très satisfait de mon achat ! La livraison a été rapide et le colis bien emballé. Elle chauffe rapidement et le bruit est acceptable, pas trop gênant.
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