Smallest most affordable model.

This controller can be installed anywhere in the house.
Digital controllers allow you to select the exact temperature of the hot water at the tap within the controller temperature range.
Benefits of a controller:
Safety, especially if you have young children, the hot water can be preset to a child-safe level.
No need to mix hot and cold water, this reduces the effect of temperature spiking when another tap in the building is turned on.
You use your continuous flow unit more efficiently as less gas is required to heat water to 40 °C (typical shower temperature) than at 55 °C (default temperature without controllers).
Allow diagnosis of problems (such as gas supply disruption) in the unlikely event or a fault, or for a maintenance review when the Infinity is serviced.
Extra 2 years warranty when fitted to an Infinity system.
Can be fitted to A-series, N-series, HD-series & EF26.
Can be retro-fitted to XR, VT, A, EF, HD and N series.

Infinity Warranty