Bosch has released the latest addition to its gas powered continuous flow product range, the Bosch 4000S.

The range includes three internal room-sealed appliances (12L, 16L and 20L). This capacity range is unique within the AU/NZ market, and is ideal for the rapidly growing medium and high density building sectors.  The range also includes one external model (12L). This unit shares common plumbing connections to the Bosch Pilot and Hydropower continuous flow water heaters, and is therefore an ideal replacement alternative when changing to an electric ignition model. Each model is available in Natural and LP gas models, and 50C temperature locked models are also available.

The internal appliances have a built-in temperature controller. An additional main (kitchen) controller can be purchased separately and can be attached to both the internal and external models. The controllers allow accurate temperature selection and will allow consumers to preset their most commonly used temperature. The controllers also serve as a diagnostic tool for the servicing plumber.

The 4000S appliances have the Bosch OptiFlow system fitted as standard. OptiFlow is a patented algorithm built into the appliance to adjust the fan speed during operation to ensure optimum performance. This means no adjustment to the fan speed is required at installation, and any change of airflow to the appliance can be offset automatically by the OptiFlow system.

Bosch supply the proprietary coaxial flue system for the internal appliances. To make ordering the flue system easy, each flue application is supplied in kit form. Adaptors to the appliance, fixings, and terminals, are supplied as part of these kits, and additional flue extensions and bends are available as separate part numbers.