The diverter valve is a device that only appears in combi boilers. It allows the hot water to be redirected to the central heating (radiators, etc.) or to the DHW system (taps, etc.). This feature is what seperates a normal boiler from a combi boiler due to the diverter valve allowing use of hot water and heating without the need for a cylinder .

Brand Name	Ferroli
Colour	Black
Material	Plastic
Manufacturer Model No	39820441
Wear Type	N/A
Type	Diverter Valve
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Waist Size	ac89ch13fx
Toilet Cistern Capacity	FTW--
Fits	Ferroli Optimax HE Plus 31C and 38C