Tecalor TTF 12.6 (cool), TTC 12.6 (cool)
The Tecalor TTF 12.6 (cool), TTC 12.6 (cool) is a heat pump with SCOP (35 °C) 5.59 and refrigerant R454C.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 12.03 kW; the scheme covers systems up to 45 kW.
- SCOP at 55 °C: 4.42. 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 | 12.03 kW1 |
| Rated output 55 °C | 11.99 kW1 |
| Efficiency | |
| SCOP (35 °C) | 5.591 |
| SCOP (55 °C) | 4.421 |
| Seasonal efficiency ηs 35 °C | 216 %1 |
| Seasonal efficiency ηs 55 °C | 169 %1 |
| Energy label 35 °C | A+++1 |
| Energy label 55 °C | A+++1 |
| Noise | |
| Indoor unit sound power | 39 dB(A)1 |
| Refrigerant | |
| Refrigerant | R454C1 |
| Refrigerant GWP | 1481 |
| Refrigerant charge | 3.1 kg1 |
How it ranks
SCOP (35 °C): better than 82% of comparable models in our database (Heat pumps · Ground source · 10–14 kW; n = 46).
Rank 8 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.
Similar models
Other brands, same type and a comparable size.
More from Tecalor
- Tecalor TTC 12.6 SCOP (35 °C): 5.48
- Tecalor TTL 10.1 AC comfort SCOP (35 °C): 4.95
- Tecalor TTC 10.5 SCOP (35 °C): 3.75
- Tecalor TTC 12.1 comfort SCOP (35 °C): 5.28
- Tecalor TTL 10.1 ACS eco SCOP (35 °C): 4.6
- Tecalor TTL 20 A SCOP (35 °C): 4.7
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 Tecalor TTF 12.6 (cool), TTC 12.6 (cool)?
The SCOP (35 °C) of the Tecalor TTF 12.6 (cool), TTC 12.6 (cool) is 5.59.1
Which refrigerant does the Tecalor TTF 12.6 (cool), TTC 12.6 (cool) use?
The refrigerant of the Tecalor TTF 12.6 (cool), TTC 12.6 (cool) is R454C.1
How much Boiler Upgrade Scheme grant can you get for the Tecalor TTF 12.6 (cool), TTC 12.6 (cool)?
£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
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 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