Most domestic boards end up too small, especially once EV chargers, heat pumps, induction hobs and garden circuits get added. That’s why 8-way consumer units have become the sweet spot for modern installs - big enough for expansion, compact enough to fit almost anywhere, and compliant with today’s circuits.
Quick Answer: An 8-way consumer unit gives enough space for all essential domestic circuits plus future upgrades like EV charging or heat pumps. They’re compact, installer-friendly, and far more flexible than 4- or 6-way boards - without the bulk of a 12-way unit.
Start with the full range here: 8-Way Consumer Units.
This guide explains why 8-way boards are fast becoming the default for domestic installs - and when to spec one over a smaller or larger unit.
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Why 8-Way Boards Are the New Standard
Most homes need more circuits than ever - and 8-way boards offer that extra breathing room without going oversized. They’re big enough to avoid overcrowding but small enough to keep installs tidy.
Key advantages:
- Future-proofing - space for EV chargers, heat pumps, solar, garden circuits and more
- Better cable separation - easier to keep wiring neat and compliant
- Less chance of nuisance trips - more ways = fewer shared circuits
- Better customer upgrade path - avoids replacing the whole CU later
8-Way vs Smaller and Larger Units
A 4-way or 6-way board can work in small flats - but they’re tight once high-load appliances are added. Meanwhile, 10- or 12-way boards are great for big homes but often oversized for standard houses.
8-Way vs 4-Way
- 4-ways quickly fill up with essentials: sockets, lights, cooker, shower
- No room for EV, heat pump or outdoor circuits
- 8-ways avoid rapid overcrowding
8-Way vs 6-Way
- 6-ways are fine for simple installs but leave little expansion space
- 8-ways add two extra ways at minimal extra cost
- Better match for modern load demands
8-Way vs 12-Way+
- 12-way boards are excellent for big homes but oversized for most semis
- 8-ways offer the sweet spot: flexible but compact
- Easier to position in tight cupboard spaces
Where 8-Way Units Fit Best
These boards hit the sweet spot for most domestic properties - enough capacity, not too bulky, and compliant for modern load requirements.
Best suited for:
- Standard 2–4 bedroom homes
- Homes planning an EV charger or heat pump
- Retrofit upgrades where space is limited but flexibility is needed
- Outbuildings where multiple circuits are expected (garage + EV + garden)
Installer-Favourite 8-Way Consumer Units
Here are reliable 8-way units commonly used across domestic EV, heat pump and general-purpose installs.
- 8-Way IP65 EV Connection Unit – Surge Protected (32A)
- 8-Way IP65 EV Connection Unit – Surge Protected (40A)
- Heat Pump Consumer Unit (40A)
- 8-Useable-Way Consumer Unit
Browse all 8-way options: 8-Way Consumer Units.
FAQs
Installers typically ask these when deciding whether to spec an 8-way over a smaller board.
Are 8-way boards big enough for EV chargers?
Yes. They give enough space for a dedicated RCBO and surge protection while keeping essential circuits separate.
Can I install an 8-way board in a small property?
Yes - they’re compact and often the better future-proof choice over a 4- or 6-way unit.
Do 8-way boards come with surge protection?
Many EV and heat pump variants do. Always check whether an SPD is included or needs adding separately.
Are 8-way boards compliant with Amendment 2?
Yes - as long as the unit includes or accommodates RCBOs, SPDs and main isolation in line with BS 7671.
👉 Need a future-proof domestic board? Browse all 8-way consumer units