Ferroli air conditioners in the UK
Ferroli has 11 split and multi-split families registered for the UK, and 0% pass England's 37 dB limit at 3 m from a neighbour's window. If you want the quietest 2.5 kW Ferroli, it is Ferroli UIDIAMANT 2.6 kW (UEDIAMANT9) at ≈61.0 dB(A).
manufacturer-declared, EPREL
What this brand has in the catalogue
11 families, capacity 2.6–8.2 kW. Median outdoor sound power is ≈65.0 dB(A).
| Field | Value |
|---|---|
| Families | 11 |
| Capacity | 2.6–8.2 kW |
| Median outdoor LwA | 65.0 dB(A) |
| Share passing 37 dB at 3 m | 0% |
| Refrigerants | R32 |
| UK distribution page | no distribution URL stored on these registrations |
Quietest model at each capacity
8 capacities have an outdoor sound power for Ferroli.
| Capacity | Quietest model | LwA dB(A) | 3 m dB(A) | At 37 dB |
|---|---|---|---|---|
| 2.6 kW | Ferroli UIDIAMANT 2.6 kW (UEDIAMANT9) | 61.0 | 43.5 | over |
| 3.5 kW | Ferroli UIDIAMANT 3.5 kW (UEDIAMANT12 / U.I.DIAMANT12) | 65.0 | 47.5 | over |
| 4.1 kW | Ferroli UIDIAMANT 4.1 kW (U.EDIAMANT14-2 / U.IDIAMANT7) | 64.0 | 46.5 | over |
| 5.2 kW | Ferroli UIDIAMANT 5.2 kW (UEDIAMANT18) | 61.0 | 43.5 | over |
| 5.3 kW | Ferroli UIDIAMANT 5.3 kW (U.EDIAMANT18-2) | 65.0 | 47.5 | over |
| 7 kW | Ferroli UIDIAMANT 7 kW (UEDIAMANT24) | 67.0 | 49.5 | over |
| 7.9 kW | Ferroli UIDIAMANT 7.9 kW (U.EDIAMANT27-3) | 67.0 | 49.5 | over |
| 8.2 kW | Ferroli UIDIAMANT 8.2 kW (U.EDIAMANT24-4) | 67.0 | 49.5 | over |
EPREL manufacturer-declared registrations · snapshot 25 Sep 2026 · n=11 · median outdoor LwA and the 3 m pass share use contract_engine, Q=2, no barrier; distribution URL is the brand_uk_distribution field · updated 25 Sep 2026 · version 1.0.0 · CSV of the values on this page
How this page was calculated
If the calculated sound pressure level at all assessment positions is equal to or lower than 37.0 dB(A) then the heat pump will comply with the Permitted Development noise limit
Quietest models
- Ferroli UIDIAMANT 2.6 kW (UEDIAMANT9)
- Ferroli UIDIAMANT 5.2 kW (UEDIAMANT18)
- Ferroli UIDIAMANT 4.1 kW (U.EDIAMANT14-2 / U.IDIAMANT7)
- Ferroli UIDIAMANT 4.1 kW (U.EDIAMANT14-2 / U.IDIAMANT7PLUS)
- Ferroli UIDIAMANT 3.5 kW (UEDIAMANT12 / U.I.DIAMANT12)
- Ferroli UIDIAMANT 3.5 kW (UEDIAMANT12 / U.I.DIAMANT12PLUS)
- Ferroli UIDIAMANT 4.1 kW (U.EDIAMANT21-3)
- Ferroli UIDIAMANT 5.3 kW (U.EDIAMANT18-2)
Better than a brand landing page: the 3 m pass share and the quietest model at each capacity are calculated, not claimed.