B
Evidence Grade B
Graded
accuracy verified by the review judge
Safe to Cite
Recent
96%
96% -- customer satisfaction rate for German homeowners who switched from oil or gas heating to a heat pump (2025)
96% of surveyed German homeowners who switched from oil or gas heating to a heat pump in existing buildings are satisfied with the operation of their devices (67% very satisfied, 29% rather satisfied).
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Lighthouse Research Team
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Source verified
Evidence graded
Value
96%
Unit
Percentage
Data Vintage
2025
Entity
Sample Size
794
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Forsa / Bundesverband Wärmepumpe (BWP) e.V.
Primary
Tier B
https://ress-info.de/waermepumpenmarkt-zeigt-starkes-wachstum-und-hohe-kundenzufriedenheit/ ↗
Source Article
Wärmepumpenmarkt zeigt starkes Wachstum und hohe Kundenzufriedenheit
Die deutsche Wärmepumpenbranche blickt auf ein erfolgreiches erstes Quartal 2025 zurück. Mit 62.000 verkauften Geräten konnte der Absatz im Vergleich zum Vorjahreszeitraum um beachtliche 35 Prozent gesteigert werden. Dieser positive Trend knüpft an die bereits im letzten Quartal 2024 deutlich gestie…
Original Research
Forsa / Bundesverband Wärmepumpe (BWP) e.V.
· Original study ↗
Methodology
Forsa survey of 794 homeowners who switched from oil or gas heating to a heat pump in the existing building stock; breakdown: 67% very satisfied, 29% rather satisfied
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
German homeowners who switched from oil or gas heating to a heat pump: 96% customer satisfaction rate. Source: Forsa / Bundesverband Wärmepumpe (BWP) e.V. (2025). Via Lighthouse Intelligence -- https://lighthousedata.io/data/heat-pump-owner-satisfaction-germany-2025
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<blockquote cite="https://lighthousedata.io/data/heat-pump-owner-satisfaction-germany-2025" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>96%</strong> -- customer satisfaction rate for German homeowners who switched from oil or gas heating to a heat pump<br><small>Source: Forsa / Bundesverband Wärmepumpe (BWP) e.V. (2025) · <a href="https://lighthousedata.io/data/heat-pump-owner-satisfaction-germany-2025" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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