Space saving
Design to install and fit in tight spaces with no G3 certification required
Cube X
The smart hot water solution for social housing retrofit
A simpler and more convenient smart hot water solution for retrofit projects which can’t accommodate a G3 installation.
The Cube X has been added to SAP Appendix Q listings for innovative products.
Rethink Retrofit with Cube X
Designed for high-rise homes and hard-to-fit spaces, Cube X brings Mixergy’s award-winning intelligence to thermal stores — with zero compromise on safety, control, or energy efficiency.
- High-rise retrofits: Avoid plumbing complications and maximise install viability
- Space-tight homes: Make the most of limited plant room or cupboard space
- Energy performance upgrades: Uplift SAP scores and meet SHDF & EPC targets
Lower bills
Brings down hot water bills significantly by only heating what is needed
In control
The app enables easy scheduling, machine learning, smart tariff integration and insights
Birmingham City Council first to install Cube X
As the very first installation in the UK, this commercial trial with Birmingham City Council is expected to save the council’s residents thousands on their hot water bills. Legionella and Fire Safe Services provided the installation, which was easy to install due to no G3 regulations required.
The Mixergy Cube X is capable of heating only what the home needs and is set to become the preferred smart hot water solution for social housing.
I’ve been in the plumbing and heating industry now for over 30 years and this is one of the best products that has come onto the market.
Steve Morris, Managing Director of Legionella and Fire Safe Services
Technical specifications
The following table displays technical data for the Cube X smart hot water cylinders with a capacity of 150 and 210L.
| Product variant | 150L | 210L |
| Width (mm) | 520 | 520 |
| Depth (mm) | 585 | 585 |
| Height (including fittings, mm) | 1315 | 1650 |
| Clearance | W-50mm | D-50mm | H-475mm | W-50mm | D-50mm | H-475mm |
| Dry weight (kg) | 36 | 44 |
| Wet weight (kg) | 188 | 246 |
| Primary connections | 22mm comp | 22mm comp |
| Overfill pipe connections | G ¾“ | G ¾“ |
| Electrical requirements | 16A, 230-240V, 1.5mm2 CSA | 16A, 230-240V, 1.5mm2 CSA |
| DHW coil max operating pressure (bar) | 3 | 3 |
| Primary coil pressure drop @15 l/min (mbar) | 107 | 134 |
| Maximum permission storage water temperature (°C) | 65 | 65 |
| Standing heat loss (kWh/24h) | 1.12 | 1.24 |
| ERP rating | B | B |
| See full technical details | Cube X Datasheet |
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