Octopus Energy
Cosy 6
House Verdict
8.3/10
Octopus's own-brand R290 monobloc paired with a single-vendor install, smart Cosy tariff and one warranty. The 'don't make me think' option.
- SCOP (35°C)
- 5.00
- Running cost
- £1,090/yr
- Installed
- From £7,500 after grant, fixed-price install
Best for
Single-vendor installsOctopus tariff householdsDecision-fatigued buyers
Editorial render. Not a manufacturer photograph; we do not redistribute press imagery without a licence.
Primary question · Is the full-stack Octopus install actually the easiest way to get a heat pump?
The five questions
Is this right for me?
Anyone who'd rather have one phone number to call and is happy on an Octopus tariff.
What will it cost?
From £7,500 after grant, fixed-price install
Advantages
- Single accountable vendor
- Strong tariff integration (Cosy)
- Fixed-price surveys
Trade-offs
- Less choice of installer
- Coverage still expanding region-by-region
What to do next
Open the cost planner to estimate your installed price.
Key specifications
- Output
- 6 kW @ A7/W35
- SCOP (35°C)
- 5.00
- Sound at 1 m
- 32 dB(A) min
- Refrigerant
- R290 (propane)
Perfect for
Anyone who'd rather have one phone number to call and is happy on an Octopus tariff.
Avoid if
You want to mix-and-match installer, kit and energy supplier; Octopus is deliberately a one-stop choice.
What we like
- , Single accountable vendor
- , Strong tariff integration (Cosy)
- , Fixed-price surveys
What we don't
- , Less choice of installer
- , Coverage still expanding region-by-region
House Verdict · Confidence: medium
★★★★★
Worth considering instead
Vaillant★★★★★aroTHERM plus 7 kW- SCOP (35°C)
- 5.05
- Running cost
- £1,180/yr
1970s–2000s 3-bedWell-insulated semisQuiet neighbourhoodsReadHouse Verdict9.3/10
Samsung★★★★★EHS Mono HT Quiet R290 (8 kW)- SCOP (35°C)
- 4.95
- Running cost
- £1,140/yr
Value-driven retrofitsLarger 4-bed homesCost-sensitive ownersReadHouse Verdict8.2/10
House Summary
If your brief matches "anyone who'd rather have one phone number to call and is happy on an octopus tariff.", the Cosy 6 is a confident pick. If it doesn't, the alternatives above are more honest answers.
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