Mitsubishi Electric EHGT17D-YM9ED
The Mitsubishi Electric EHGT17D-YM9ED is a heat pump with SCOP (35 °C) 5.15 and refrigerant R032.1,2
Key figures
Rules in the UK
Boiler Upgrade Scheme
Check conditions£7,500 – £9,0003Fixed 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.4,5
- Must be MCS-certified (product and installer). Check the Ofgem product eligibility list.
- Rated output 11 kW; the scheme covers systems up to 45 kW.
- SCOP at 55 °C: 3.83. The installed system needs a SCOP of at least 2.8 (MCS calculation).
Technical specifications
| General | |
|---|---|
| Type (source) | Ground source1 |
| Performance | |
| Rated output 35 °C | 11 kW2 |
| Rated output 55 °C | 11 kW2 |
| Efficiency | |
| SCOP (35 °C) | 5.152 |
| SCOP (55 °C) | 3.832 |
| Seasonal efficiency ηs 35 °C | 203 %2 |
| Seasonal efficiency ηs 55 °C | 150 %2 |
| Energy label 35 °C | A+++2 |
| Energy label 55 °C | A+++2 |
| Noise | |
| Indoor unit sound power | 42 dB(A)2 |
| Refrigerant | |
| Refrigerant | R0321 |
| Refrigerant GWP | 6751 |
| Grants & market | |
| ISDE grant (NL) | 4,575 €1 |
How it ranks
SCOP (35 °C): better than 41% of comparable models in our database (Heat pumps · Ground source · 10–14 kW; n = 46).
Rank 28 of 47
Compared with every model on VersusIndex in the same group with a known value; equal values do not count as better. This says nothing about price, installation or reliability.
Manufacturer documentation
External links to Mitsubishi Electric's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
Similar models
Other brands, same type and a comparable size.
More from Mitsubishi Electric
- Mitsubishi Electric Ecodan PUZ-WZ120VAA(-BS) + EHPT20X-*M*E SCOP (35 °C): 4.79
- Mitsubishi Electric Ecodan PUZ-WZ100VAA(-BS) + EHPT20X-*M*E SCOP (35 °C): 4.7
- Mitsubishi Electric Ecodan PUZ-WZ85VAA(-BS) + EHPT17X-*M*E SCOP (35 °C): 4.54
- Mitsubishi Electric EHWT17D-MHEDW SCOP (35 °C): 6.87
- Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-MEE SCOP (35 °C): 3.92
- Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE SCOP (35 °C): 3.92
Guides on heat pumps
- SCOP, COP and ηs: what a heat pump’s efficiency figures mean
- Hybrid or full heat pump? The main types compared
- Heat pump noise: MCS 020(a), permitted development and where to put the unit
- Sizing a heat pump: heat loss, flow temperature and rated output
- Heat pump refrigerants: R290, R32 and R410A compared
How we collect and check this data →
Frequently asked questions
What is the SCOP (35 °C) of the Mitsubishi Electric EHGT17D-YM9ED?
The SCOP (35 °C) of the Mitsubishi Electric EHGT17D-YM9ED is 5.15.1,2
Which refrigerant does the Mitsubishi Electric EHGT17D-YM9ED use?
The refrigerant of the Mitsubishi Electric EHGT17D-YM9ED is R032.1,2
How much Boiler Upgrade Scheme grant can you get for the Mitsubishi Electric EHGT17D-YM9ED?
£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.1,2
Sources
- ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · accessed 25 Oct 2026
- European Product Registry for Energy Labelling (EPREL) – heat pumps — Europese Commissie · accessed 15 Oct 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