Kermix-change dynamic water (pc) 10 WW I
The Kermi x-change dynamic water (pc) 10 WW I is a heat pump with SCOP (35 °C) 6.89 and refrigerant R410A.1
Key figures
Rules in the UK
Boiler Upgrade Scheme
Check conditions£7,500 – £9,0002Fixed grant (England & Wales)
Fixed grant in England and Wales, deducted from your installer’s quote. £9,000 when replacing oil or LPG off the gas grid (until March 2027). Scotland: Home Energy Scotland grant instead.3,4
- Must be MCS-certified (product and installer). Check the Ofgem product eligibility list.
- Rated output 10 kW; the scheme covers systems up to 45 kW.
- SCOP at 55 °C: 4.67. The installed system needs a SCOP of at least 2.8 (MCS calculation).
Technical specifications
| General | |
|---|---|
| Type (source) | Water-to-water1 |
| Compressors | 11 |
| Capacity control | drehzahlregelung1 |
| Performance | |
| Rated output 35 °C | 10 kW1 |
| Rated output 55 °C | 10 kW1 |
| Efficiency | |
| SCOP (35 °C) | 6.891 |
| SCOP (55 °C) | 4.671 |
| Seasonal efficiency ηs 35 °C | 267.8 %1 |
| Seasonal efficiency ηs 55 °C | 178.7 %1 |
| Noise | |
| Indoor unit sound power | 43 dB(A)1 |
| Refrigerant | |
| Refrigerant | R410A1 |
| Refrigerant charge | 2.1 kg1 |
| Electrical | |
| Max. power input | 3.2 kW1 |
| Connectivity & smart | |
| SG Ready | Yes1 |
Manufacturer documentation
External links to Kermi's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
Frequently asked questions
What is the SCOP (35 °C) of the Kermi x-change dynamic water (pc) 10 WW I?
The SCOP (35 °C) of the Kermi x-change dynamic water (pc) 10 WW I is 6.89.1
Which refrigerant does the Kermi x-change dynamic water (pc) 10 WW I use?
The refrigerant of the Kermi x-change dynamic water (pc) 10 WW I is R410A.1
How much Boiler Upgrade Scheme grant can you get for the Kermi x-change dynamic water (pc) 10 WW I?
£7,500 in England and Wales, provided the product and installer are MCS-certified (£9,000 when replacing oil or LPG off the gas grid, until March 2027). The installer applies and deducts the grant from your quote.1
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 28 Sept 2026
- Boiler Upgrade Scheme: what you can get — GOV.UK · accessed 27 Sept 2026
- Boiler Upgrade Scheme: guidance for installers (V5) — Ofgem · accessed 27 Sept 2026
- Boiler Upgrade Scheme product eligibility — Ofgem · accessed 27 Sept 2026