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Heat pumps · UK

ELCOAQUATOP T35H (Wasser / Wasser)

ELCO AQUATOP T35H (Wasser / Wasser)
Image: ELCOrequest removal

The ELCO AQUATOP T35H (Wasser / Wasser) is a heat pump with SCOP (35 °C) 5.93 and refrigerant R407C.1

Last updated: Technical specifications Rules in the UK ⇄ Compare this model
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SCOP (35 °C)
5.931

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

Refrigerant
R407C1
Official source
Type (source)
Water-to-water1
Official source
Rated output 35 °C
48.85kW1
Official source
Rated output 55 °C
46kW1
Official source
UK

Rules in the UK

Boiler Upgrade Scheme

Not eligible

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 48.85 kW; the scheme covers systems up to 45 kW.
  • SCOP at 55 °C: 5.2. 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) Water-to-water1
Compressors 11
Capacity control keine1
Performance
Rated output 35 °C 48.85 kW1
Rated output 55 °C 46 kW1
Efficiency
SCOP (35 °C) 5.931
SCOP (55 °C) 5.21
Seasonal efficiency ηs 35 °C 229 %1
Seasonal efficiency ηs 55 °C 200 %1
Noise
Indoor unit sound power 61 dB(A)1
Refrigerant
Refrigerant R407C1
Refrigerant charge 6.2 kg1
Electrical
Max. power input 8.3 kW1
Connectivity & smart
SG Ready Yes1

Manufacturer documentation

External links to ELCO'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 ELCO AQUATOP T35H (Wasser / Wasser)?

The SCOP (35 °C) of the ELCO AQUATOP T35H (Wasser / Wasser) is 5.93.1

Which refrigerant does the ELCO AQUATOP T35H (Wasser / Wasser) use?

The refrigerant of the ELCO AQUATOP T35H (Wasser / Wasser) is R407C.1

How much Boiler Upgrade Scheme grant can you get for the ELCO AQUATOP T35H (Wasser / Wasser)?

Probably none. Rated output 48.85 kW; the scheme covers systems up to 45 kW.1

Sources

  1. List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 29 Sept 2026
  2. Boiler Upgrade Scheme: what you can get — GOV.UK · accessed 27 Sept 2026
  3. Boiler Upgrade Scheme: guidance for installers (V5) — Ofgem · accessed 27 Sept 2026
  4. Boiler Upgrade Scheme product eligibility — Ofgem · accessed 27 Sept 2026