All Boiler Flues & Accessories (779)

Shop our complete range of boiler flues and accessories for installation, maintenance and replacement jobs. Find boiler flues, controls, system filters, terminal guards and other boiler accessories, with options to suit a wide range of domestic and commercial heating systems.

At Williams, we stock boiler flues and accessories from leading brands including Worcester Bosch, Vaillant, Ideal Heating, Viessmann, Glow-worm, Baxi, Firebird, Grant UK and Warmflow, plus many more. Browse the range for Click & Collect or delivery.

All Boiler Flues & Accessories (779)

Overflow Terminal Guard - Plastic Coated TGDOF843

6.5" x 11" Round Terminal Guard - Plastic Coated

9" x 11" Round Terminal Guard - Plastic Coated

PipeSnug 110mm Pipe Seal - Black

PipeSnug 40mm Pipe Seal - Black (2 Pack)

Anglo Nordic 10mm Pipe Liner for Oil (10 pack) 3006092

900mm Universal Thermocouple

PipeSnug 32mm Pipe Seal - Black (2 Pack)

PipeSnug 40mm Pipe Seal - White (2 Pack)

PipeSnug 110mm Pipe Seal - White

6.5" x 11" Round Flue Terminal Guard - Plain Metal

6.5" x 11" High Level Plume Guard - Plastic Coated

PipeSnug 32mm Pipe Seal - White (2 Pack)

Harlequin 1000 Litre Bunded Oil Tank inc. Apollo Kit 1000ITE

9" x 11" High Level Plume Guard - Plastic Coated

6.5" x 11" Round Terminal Guard - Stainless Steel

900mm Super Thermocouple

4" x 7" Round Flue Terminal Guard