Octopus Energy
Octopus Cosy 6
A4.6 6kW
Octopus's own 6kW R290 heat pump, usually fitted by Octopus, and with the £7,500 grant the all-in price often lands close to a new gas boiler.
6kW
Heat output
4.1
Efficiency (SCOP)
Best of 6 we compare
65°C
Max flow temp
R290
Refrigerant
42dB
Noise
Best of 6 we compare
PowerGuide is reader-supported. We may earn a commission from links on this page. It never affects our rankings or what we recommend. Learn more
Our verdict
The value disruptor. Octopus's bundled install plus the grant can make a heat pump astonishingly cheap, and the Cosy 6 itself is a capable R290 unit. Best if you're an Octopus customer.
Good
- Often near-boiler price after grant
- Quiet
- Slick app & tariff integration
Watch out
- Install tied to Octopus
- 6kW suits small/medium homes
Specifications
| Heat output | 6 kW |
|---|---|
| Efficiency (SCOP) | 4.1 |
| Max flow temp | 65 °C |
| Refrigerant | R290 |
| Noise | 42 dB |
| Min operating temp | -20 °C |
| Type | Monobloc |
| Warranty | 7 yrs |