The Biasi Gaia 428S fan assembly also known as a blower unit, as gas burns in the combustion chamber, unsafe gases are released and it pushes the waste gases by way of a pipe known as a flue. This is a large pipe that's fitted to the boiler. The appliance either has a vertical flue going through a roof or a horizontal flue going through a wall. This is what takes dangerous gases away from your property. For any reason, your fan ceases to operate, boiler won't work.

Brand Name	Biasi
Colour	N/A
Material	N/A
Manufacturer Model No	BI1256102
Wear Type	N/A
Type	Fan
Certifications Met	N/A
Country of Origin	N/A
Protects From	N/A
Waterproof	N/A
Number of Pockets	N/A
Waist Size	ab75ch94gv
ERP Rating	Not Applicable
Compatible With	GAIA 428S
Supplier Part Number	BI1256102