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Heat pumps · UK

DVI EnergiDVI AW-407-16

The DVI Energi DVI AW-407-16 is an air-to-water heat pump with a SCOP of 4.22 (35 °C) and a sound power level of 66 dB(A). Under permitted development the limit is 37 dB(A) measured 1 m in front of the centre of a neighbour’s habitable-room door or window. Free-standing, the indicative minimum distance is 11.2 m; against a wall 15.9 m.1,2

Last updated: Technical specifications Rules in the UK ⇄ Compare this model
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SCOP (35 °C)
4.221

Seasonal efficiency: how much heat you get per kWh of electricity across a heating season.

Heating capacity (A7/W35)
20.61kW2
Official source
Outdoor unit sound power
66dB(A)1
Official source
Refrigerant
R407C1
Official source
Type (source)
Air-to-water1
Official source
UK

Rules in the UK

Minimum distance to your neighbour

MCS 020(a) (England, permitted development since 29 May 2025)3 · 1 m in front of the centre of a neighbour’s habitable-room door or window

Permitted development (MCS 020(a)) ≤ 37 dB(A) · LAeq,5min
Free-standing 11.2 m
Against wall 15.9 m
In corner 22.5 m

Indicative calculation (hemispherical, no barriers). Not a substitute for an MCS 020 assessment.

Boiler Upgrade Scheme

Check conditions

£7,500 – £9,0004Fixed 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.5,6

  • Must be MCS-certified (product and installer). Check the Ofgem product eligibility list.
  • Rated output 12.23 kW; the scheme covers systems up to 45 kW.
  • SCOP at 55 °C: 3.58. The installed system needs a SCOP of at least 2.8 (MCS calculation).
Heat pump grants in the UK explained →

Technical specifications

General
Type (source) Air-to-water1
Compressors 11
Capacity control sonstige1
Performance
Heating capacity (A7/W35) 20.61 kW2
Rated output 35 °C 12.23 kW1
Rated output 55 °C 13.02 kW1
Efficiency
SCOP (35 °C) 4.221
SCOP (55 °C) 3.581
Seasonal efficiency ηs 35 °C 166 %1
Seasonal efficiency ηs 55 °C 140 %1
Energy label 35 °C A, , 2
Energy label 55 °C A, , 2
COP A7/W35 4.71
COP A2/W35 4.21
COP A-7/W35 3.11
Noise
Outdoor unit sound power 66 dB(A)1
Indoor unit sound power 41 dB(A)1
Refrigerant
Refrigerant R407C1
Refrigerant GWP 1,7742
Refrigerant charge 5.2 kg1
Electrical
Max. power input 12 kW1
Connectivity & smart
SG Ready Yes1

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Frequently asked questions

Can I install the DVI Energi DVI AW-407-16 without planning permission?

Under MCS 020(a) (England, permitted development since 29 May 2025) the unit must not exceed 37 dB(A) 1 m in front of the centre of a neighbour’s habitable-room door or window. With a sound power of 66 dB(A) that indicatively means 11.2 m free-standing, 15.9 m against a wall or 22.5 m in a corner. Your MCS installer must confirm this.1,2

How much Boiler Upgrade Scheme grant can you get for the DVI Energi DVI AW-407-16?

£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

Which refrigerant does the DVI Energi DVI AW-407-16 use?

The DVI Energi DVI AW-407-16 uses R407C.1,2

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026
  2. Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
  3. MCS 020(a) (England, permitted development since 29 May 2025)
  4. Boiler Upgrade Scheme: what you can get — GOV.UK · accessed 27 Sept 2026
  5. Boiler Upgrade Scheme: guidance for installers (V5) — Ofgem · accessed 27 Sept 2026
  6. Boiler Upgrade Scheme product eligibility — Ofgem · accessed 27 Sept 2026