Residential — Pellet boiler

Kalorina BK25 CerealsAClass 3
29 kW

Kalorina BK25 Cereals — Front view

Kalorina BK25 Cereals — Front view

The Tatano Kalorina BK25 wood pellet boiler is unique in its category: it allows you to heat your home and produce domestic hot water (DHW).

Compact floor footprint (0.67 m²)

HomeProductsKalorina BK25 Cereals

Available models(1 variant)

Certifications :EN 303-5 Class 3ErP Class A
Technical schema

Dimensions and architecture

Front view, side view with silo, top view — from the manufacturer's technical sheet.

Technical drawing: Kalorina BK25 Cereals — dimensions and architecture

Schema extracted from the official manufacturer's technical sheet. All dimensions (R, S, K, H, N, C, P, B, L, A, O, Q) are detailed in the full PDF.

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 17225-6

Cereals / Agro-pellets

Compressed cereal blends and agricultural residues. Circular solution for farms.

EN ISO 17225-5

Log wood

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

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

Kalorina BK25 Cereals: grants in Luxembourg

In Luxembourg, the Klimabonus 2026 scheme subsidises the installation of a wood-pellet boiler in an existing residential building. Since 1 January 2026, only PELLET boilers remain eligible — log-fired and wood-chip boilers have been removed from the support scheme (aligning with the EU RED directive).

Klimabonus 2026 — wood-pellet boiler

Up to €8,000 for a single-family home (€4,000 if no old installation is being replaced); €6,000 per dwelling in a multi-unit building (capped at €40,000). Bonuses: +15% of the grant with a buffer tank (30 l/kW), +€1,000 flat-rate with solar thermal.

  • Reserved for EXISTING residential buildings (housing — neither new-build nor commercial)
  • Pellet boiler with automatic feed and ignition: particulates ≤ 8 mg/m³, NOx ≤ 200 mg/m³, efficiency ≥ 90%
  • Application to be submitted within 4 years from 31 December of the year of the invoice
  • Law of 24 July 2026: amounts published on guichet.public.lu (page updated on 11/08/2026)
Official source ↗

Supplementary municipal grants

Varies by municipality — combinable with the national Klimabonus (some municipalities offer nothing).

  • Amount and conditions specific to each municipality
  • To be checked municipality by municipality via the Klima-Agence simulator
Official source ↗

Information checked on October 3, 2026.

See the full list of grants →
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