versusindex
UK
Heat pumps · UK

ClimerACP12T

The Climer ACP12T is an air-to-water heat pump with a SCOP of 4.47 (35 °C) and a sound power level of 62 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 7.1 m; against a wall 10.0 m.1,2

Last updated: Technical specifications Rules in the UK ⇄ Compare this model
Search this model
SCOP (35 °C)
4.472

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

Heating capacity (A7/W35)
11.8kW2
Official source
Outdoor unit sound power
62dB(A)2
Official source
Refrigerant
R322
Official source
Type (source)
Air-to-water2
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 7.1 m
Against wall 10 m
In corner 14.2 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 10 kW; the scheme covers systems up to 45 kW.
  • SCOP at 55 °C: 3.36. 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-water2
Performance
Heating capacity (A7/W35) 11.8 kW2
Rated output 35 °C 10 kW2
Rated output 55 °C 10 kW2
Efficiency
SCOP (35 °C) 4.472
SCOP (55 °C) 3.362
Seasonal efficiency ηs 35 °C 176 %2
Seasonal efficiency ηs 55 °C 131 %2
Energy label 35 °C A, , , 2
Energy label 55 °C A, , 2
COP A7/W35 4.322
SEER (cooling) 4.432
Noise
Outdoor unit sound power 62 dB(A)2
Refrigerant
Refrigerant R322
Refrigerant GWP 6752
Refrigerant charge 2.5 kg2
Grants & market
ISDE grant (NL) 3,250 €1

Variants

This model is registered in 2 combinations (for example with a different indoor unit or cylinder) with exactly the same performance. All figures on this page apply to each of these types. The part of the type number that differs is in bold; small differences (e.g. cylinder volume or anode) are listed after it:

  • ACP12T
  • ACP12

Frequently asked questions

Can I install the Climer ACP12T 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 62 dB(A) that indicatively means 7.1 m free-standing, 10.0 m against a wall or 14.2 m in a corner. Your MCS installer must confirm this.1,2

How much Boiler Upgrade Scheme grant can you get for the Climer ACP12T?

£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 Climer ACP12T use?

The Climer ACP12T uses R32.1,2

Sources

  1. ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · 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