What 61,483 Posts Tell the Industry About Itself
The Renewable Heating Hub Consumer Intelligence Index… Five Years of UK Homeowner Sentiment on Heat Pumps and Renewable Heating: 2021–2026
Sixty thousand posts. Five years. Fourteen million views. One report.
This is not a survey. It is not a white paper with a conclusion already in mind. It is the first systematic analysis of what UK homeowners actually said about heat pumps when they thought they were just talking to each other, drawn from 61,483 real forum posts spanning five years and covering every major brand, every failure pattern and every moment the industry fell short of its promises.
No trade body has published this. No government consultation produced it. No manufacturer could commission it. Because none of them had access to this data, and some of them will not enjoy what it says.
Featured in the Financial Times, June 2026!
What is in the report
Brand sentiment and market positioning. Which manufacturers are winning and losing the homeowner conversation and why. The Samsung rise and fall documented in data. Why Octopus Energy is the third most discussed entity in a heat pump forum, ahead of Daikin and NIBE. What Mitsubishi’s consistent dominance actually means… and what it costs them.
The installer crisis. A 24-fold increase in installer quality complaints between 2021 and 2024. The cases that never closed. The homeowners who had nothing left to fight with. The certification system that was supposed to protect them.
Five years of homeowner sentiment. Confidence turned negative in 2022 and has not recovered. The 2026 data is the worst in the dataset’s history. The report documents why, and exactly what recovery requires.
Market forecast: 2026 to 2030. An evidence-based assessment of the remainder of 2026, the critical year of 2027 and two scenarios, optimistic and pessimistic, for where the market stands by 2030.
Supplementary data chapters covering property types in the community, the competitive technology landscape, what the first question of every new heat pump owner tells us about industry handover failures and analysis that does not appear anywhere else.
The numbers
- 61,483 forum posts analysed
- 2,634 unique discussion threads
- 14,668,734 total lifetime forum views
- 210% growth in community activity between 2021 and 2025
- 24x increase in installer quality complaints in three years
- 0.57 sentiment ratio in 2026, the lowest in the dataset’s history
Who should buy this
- Heat pump manufacturers who want to know what homeowners say about their brand when no one from their marketing team is in the room.
- Installer networks and training providers who want to understand where quality failures concentrate and what homeowners actually complain about.
- Green finance, warranty and insurance providers who need consumer sentiment data that no commissioned survey can produce.
- Policymakers, consultants and journalists who want the most credible independent homeowner intelligence dataset in the UK renewable heating market.
Buy the RHH Consumer Intelligence Index 2026
Buy Executive Summary only
Short on time and budget but want the key findings? The Executive Summary Edition distils the most important insights from The Renewable Heating Hub Consumer Intelligence Index 2026 into a concise, boardroom-friendly briefing designed for manufacturers, distributors, installers, investors, consultants and policymakers.
If you need the headlines, the strategic insights and the findings driving industry conversations — without reading the full report — the Executive Summary Edition is the ideal place to start.
