Residential — Solar energy
Solar systems with forced circulationA+
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Solar systems with forced circulation — 360° rotation
Forced circulation solar panels, as a complete and integrated system solution, are perfectly suited to meet the DHW needs of single-family and two-family homes, for both new builds and renovation.
Simplified solar system sizing
Available models(2 variants)
Certifications :Solar KeymarkStatically certified mounting kits
Solar systems with forced circulation: 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
Information checked on October 14, 2026.
