What is a wood pellet boiler?
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What is a wood pellet boiler?

Wood pellet boilers (also known as biomass boilers) are a type of renewable heating, sustainably fuelled by a carbon neutral source.

Wood pellet boilers perform like an oil or gas boiler but instead of being fuelled by a fossil fuel, they burn wood pellets to generate heat. They are an environmentally friendly way to use wood to heat homes and with models such as Grant’s Spira and Vecta being fully automatic, wood pellet boilers are a convenient and safe solution to sustainable home heating.

A wood pellet boiler is made up of the boiler itself, an auger to the side and a storage hopper (larger Grant wood pellet boilers will have twin boilers, two augers and a larger hopper). The wood pellets, which are stored in the hopper, are fed into the burner within the boiler via the auger. The pellets are ignited in the burner and the heat generated is controlled automatically by the feed rate of the pellets. A fan in the boiler then propels hot gas into the boiler’s primary heat exchanger and the heat energy is transferred to the central heating system before being circulated around the house.

The wood pellets themselves are made from compressed sawdust which is fused together by the natural lignin present in dry wood. To ensure a biomass boiler operates as effectively as possible with high combustion efficiencies, it is important that the pellets are dry with a low moisture content of less than 10%. For Grant wood pellet boilers, only 6mm approved EN Plus A1 premium pellets should be used and, if Domestic RHI payments are being claimed, it is important that the pellets are sourced from a registered supplier on the Biomass Suppliers List issued by the Government.

Please click here to read more about Grant's Wood Pellet Boiler range

What is a wood pellet boiler?