The Bosch OptiFlow Professional Internal is a 6 star, continuous flow hot water appliance designed for medium density housing.

It is fitted with Bosch’s patented OptiFlow combustion management system which aims to provide increased energy efficiency over the lifetime of the appliance by monitoring and adjusting the burner gas-to-air ratio.

The OptiFlow Professional Internal must be paired with Bosch’s coaxial flue to allow the appliance to draw in air for combustion and expel flue gas outside, making the appliance room sealed and ideal for installation in compact spaces.

The Bosch OptiFlow Professional Internal is available in 12L, 16L and 20L capacities and is a great solution for installations where space needs to be considered.