Mixergy Cube X listed in SAP Appendix Q

February 17, 2025

We’re excited to announce that our Mixergy Cube X range has been added to SAP via the Appendix Q listings for innovative products. Listed under ‘Smart Hot Water Tanks’, Cube X joins our existing unvented cylinder options, now with the added benefit of Thermal Store capabilities, expanding the range of applications for this cutting-edge technology. 

Cube X delivers pressurised hot water without the need for a traditional pressurised cylinder. That means no G3 overflow, pressure vessel, or Temperature/Pressure Relief Valve, making it an ideal solution for flats and properties with limited space or restricted access. 

Like all Mixergy products, Cubex is designed to save both money and energy. It heats only the water you need, reducing energy waste and making the most of renewable heat as it’s generated. It’s also virtually maintenance-free, cuts installation costs, significantly reduces the risk of legionella, and is perfect for areas where limescale buildup is a challenge. 

Paul Kidd, Commercial Director at Harlequin said: Adding Cubex to the Mixergy range means even more homes and businesses can benefit from smart hot water technology. Heating only what’s needed, when it’s needed, allows homeowners to save money and maximise renewable energy use. Plus, efficient hot water storage can improve a home’s EPC rating and lower its carbon footprint.” 

Right now, Cubex is available as a direct (electric-only) version, with an indirect model (electric + secondary heat source) coming soon. 

For more details on the Cube X and it’s suitability for your project, book a consultation with Peter McBride, Specification Director at Mixergy.