GREYKO EXTREME pellet boiler
Three-pass heat exchanger for maximum efficiency
Product description
GREYKO EXTREME is a pellet boiler with a water jacket suitable for houses, small administrative buildings, workshops and service spaces.
It is designed to work with GREYKO RB / RB STAR burners in the corresponding output range.
The sealed combustion chamber and robust steel construction ensure safe and reliable operation.
Its three-pass heat exchanger and vertical flue tubes maximize heat transfer and help achieve high seasonal efficiency.
GREYKO EXTREME — performance and convenience
High-quality body
Inner body made of high-quality 5 mm steel sheet.
BDS EN 303-5:2021
Tested according to BDS EN 303-5:2021 requirements.
High efficiency
Efficiency above 91% at nominal power.
Flexible bunker installation
Bunker can be mounted on the boiler or as a standalone unit.
Installation requirements
- Installation must be performed by an authorized installer
- Minimum clearance 500 mm from all sides
- Fresh air inlet opening 80-100 mm
- Room volume above 40 m3
Recommended fuel
Wood and agro pellets
Poor pellet quality reduces efficiency and increases maintenance. We recommend ENplus A1 certified pellets.
Technical documentation
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