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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