Mixergy uses a plate heat exchanger to transfer heat from the heat pump to the water, which functions by flowing two liquids across eachother. Mixergy optimises heat transfer by utilising a circulation pump.

ADVANTAGES:

• Compact solution: Higher heat transfer can be achieved at a lower surface area, meaning Mixergy is the only cylinder on the market to size heat pump tanks based on occupancy and not size of the coil
• Easily serviceable: plate exchangers are external fittings which can be easily replaced

Conventional heat pump tanks use a coil to transfer heat from the heat pump to the water. To achieve efficient heat transfer, a large surface area coil is required which usually spans the height of the cylinder.

LIMITATIONS:

• Large: A high volume cylinder is required to fit the coil, even if a household is low occupancy
• Inconsistent water temperature: There is a significant thermal gradient as the coil fluid cools towards the bottom
• Difficult to service: Scale build up on the internal coil cannot be treated