Thermino xPlus works with boilers and heat pumps using the compatible Optimino key. Plus, when you’re ready, you can add solar PV by simply changing the Optimino key. Modular and scalable, our thermal batteries can be connected in series or in parallel to increase heat storage capacity.

• Flexible orientation with plumbing exits on three sides
• Market-leading 10-year warranty on the heating element
• Minimal risk of legionella
• No mandatory annual maintenance
• High flow rate mains pressure hot water
• Ultra low heat losses – up to 4x lower than a conventional cylinder
• Works with any energy source – boiler, heat pumps, solar PV – with the correct Optimino key