Industrial — Pellet boiler

Kalorina Serie 22 E fixed grateClass 3
151–1162 kW

Kalorina Serie 22 E fixed grate — Front view

Kalorina Serie 22 E fixed grate — Front view

Industrial pellet systems for high performance. The efficient use of an alternative energy source, combined with the most modern technologies, enables the construction of industrial wood pellet or wood systems meeting the needs of buildings characterised by a high thermal energy demand.

High efficiency up to 92%

HomeProductsKalorina Serie 22 E fixed grate

Available models(1 variant)

Certifications :EN 303-5
Certified fuels

Manufacturer-certified fuels

Compliant with European EN ISO 17225 standards — performance guaranteed by the original technical sheet.

EN ISO 17225-2

Wood pellets

Cylindrical compressed wood pellets, Ø6 to 8 mm, moisture < 10%. Standard high energy density fuel.

EN ISO 17225-5

Log wood

Dry log wood, length 33 to 50 cm, moisture < 25%. Manual loading, autonomy depending on the firebox.

EN ISO 17225-6

Olive pomace

Pressed olive residues, moisture < 15%. Recovered byproduct from Mediterranean oil mills.

EN ISO 17225-6

Crushed shells

Crushed nut shells (almond, hazelnut, walnut), moisture < 15%. Circular solution for farms.

Specifications according to the manufacturer's technical sheet. Using non-compliant fuels voids the warranty and may shorten the boiler's lifespan.

Kalorina Serie 22 E fixed grate: grants

In Germany, replacing a heating system with a biomass boiler (pellets, logs, wood chips) in an existing residential building is subsidised by KfW (programme 458, Federal Funding for Efficient Buildings).

KfW 458 — heating grant for private individuals (BEG EM)

Base grant of 30 % of eligible costs, plus bonuses depending on the situation (climate speed, household income); up to 70 %, or 80 % with the income bonus. Eligible costs capped at €28,000 for a single-family house.

  • EXISTING residential building; apply to KfW BEFORE work starts
  • Supply or service contract signed with a condition precedent or subsequent
  • Climate speed bonus (16 %) when replacing a gas or biomass heating system at least 20 years old; it decreases from 01/02/2027
  • Income bonus (40, 30 or 10 %) for owner-occupiers depending on taxable household income
Official source ↗

Information checked on October 14, 2026.

See the full list of grants →
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