Shaped blocks for stoking chambers

For the shapes used in stoking chambers with a primary air supply, it is important to avoid damaging the doors when loading wood. Cracks not only cause progressive degradation of these shapes, but also disrupt airflow towards the nozzle. This then prevents the uniform mixing of the primary air with gases, influencing the burning process itself and preventing the combustion chamber from reaching operational temperatures. This reduces the boiler’s overall efficiency.

But equally important is resistance to the alkalis produced during wood combustion. Alkalis can chemically disrupt a block’s structure, causing its gradual degradation.

I want precisely these shaped blocks, but I’d like a mixture recommendation

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Here’s a look at the properties of the mixtures that we typically use when manufacturing shaped blocks for stoking chamber doors:


Production sample: Shaped blocks for stoking chambers—close-up
Production sample: Shaped blocks for stoking chambers—close-up

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Firing at up to 950°C
Over 50,000 different shapes
Over 8,300 m2 of production and storage area
Traditional hand production
We produce testing shaped blocks
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