Review · Brand
Mitsubishi Ecodan review
The UK's longest-running mainstream heat pump range. Reliable, well-supported, slightly behind on efficiency.
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The Mitsubishi Ecodan has been the workhorse of UK heat pump installs for over a decade. Install cost £10,000–£13,800, SCOP 4.4 typical. The Ultra Quiet PUZ-WZ variant is the go-to for urban plots with strict noise requirements.
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Why it remains popular
- Decade of UK field data — installers know the quirks.
- 3 years parts + labour warranty standard.
- Ultra Quiet variant cuts noise to 28 dB(A) at 3m.
- FTC6 controller is comprehensive (if dated).
Where it lags
- SCOP trails Vaillant and the latest Daikin R290 units by 0.2–0.3.
- App is the weakest of the major brands.
- R32 across most of the range — same F-gas concern as Daikin standard.
Frequently asked questions
- How much does a Mitsubishi Ecodan cost installed?
- A typical 8.5 kW Ecodan installs at £10,000–£13,800 in the UK, £2,500–£6,300 net after the £7,500 BUS grant.
- Which Ecodan variant should I choose?
- The Ultra Quiet PUZ-WZ range for tight urban plots; the standard PUZ-WM for cost-sensitive retrofits; the QUHZ CO2 monobloc for high-temperature applications.
Sources
- MCS Certified — Installer certification scheme required for grant eligibility.
- Energy Saving Trust — Heat pump efficiency, running cost and SCOP benchmarks (UK).
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