MIXERGY 120L INDIRECT CYLINDER OPEN VENT

The Mixergy 120L Indirect Open Vent Cylinder is a smart, high‑efficiency hot water cylinder designed for open‑vented (gravity‑fed) systems. With a 120‑litre capacity, it connects to a conventional boiler via an internal indirect coil and includes an electric immersion heater for backup or smart top‑ups.

Mixergy’s smart control allows you to heat only the amount of hot water you need, when you need it. Use the Mixergy app to schedule, boost, and monitor hot water levels and energy usage in real time, helping to reduce running costs and improve efficiency.

The cylinder can make use of surplus solar PV generation by diverting excess electricity into stored hot water, and it can take advantage of time‑of‑use tariffs by heating at off‑peak times. Top‑down heating delivers usable hot water quickly while minimising energy waste.

Built with a stainless steel vessel and high‑performance insulation, the unit is engineered for durability and low heat loss. Integrated sensors and controls manage temperature, volume, and hygiene functions, including an automated anti‑legionella cycle. Installation should be carried out by a qualified heating professional and configured according to local regulations.

• 120L capacity smart hot water cylinder
• Open vent (vented) configuration for gravity‑fed systems
• Indirect coil for boiler connection, plus electric immersion backup
• App control for scheduling, boosting, and monitoring
• Heat only what you need with Mixergy’s top‑up functionality
• Compatible with solar PV diversion and time‑of‑use tariffs
• Top‑down heating for faster availability of hot water
• Stainless steel tank with high‑performance insulation
• Integrated sensors and anti‑legionella protection
• Professional installation required