This can vary due to your boiler but for most purposes 75mm above the boiler flue. Protects your boiler from damaging rain ingress in heavy rain and wind. It was also protect your boiler in the event of guttering failure.
eBay
Double Valve Faucet 90 Degree Double Valve Water Tap Brass Double Water Tap Outdoor Hose Faucet for Gardens Patios Boiler Drain
Aliexpress UK
Protect your boiler and flue from wind, rain and more. Easy to fit with the included fixings. NB: Ensure to leave enough head room during install to allow the steam to escape and not back vent into the flue.
eBay
210D Oxford Protective Cover Garden Furniture Covers,Patio Furniture Covers Garden Table Cover Waterproof Windproof
Aliexpress UK
The Flue Vent Rain Cover is crafted through advanced 3D printing technology to provide precision and long-lasting quality. Ideal for patios and outdoor spaces, it enhances the functionality of your heating systems while blending seamlessly into any setting.
eBay
Garden Swing Canopy Seat 3 Seats Covers Swing Canopy Cover Kit/Set Swing Cover Set Patio Swing Top Cover Replace Accessories
Aliexpress UK
Boiler Flue & External Pipe Rain CoverSafeguard your boiler and flue against wind, rain, and adverse weather conditions with this easy-to-install cover. Key Features: Protects from rain ingress and prevents steam and gas blowback caused by strong winds. Made from durable, heat-treated plastic with a UV-protected coating for long-lasting performance. Dimensions: 18cm depth, 24cm width, and an arc height of 13cm. Includes all necessary wall fixings (screws and wall plugs). Important Notes: UK Gas Safety Regulations mandate a minimum safe distance of at least 75mm above the flue pipe for proper dispersion of water vapour and gases emitted by the boiler. For Gas Safety Engineers: Refer to Document J of the Gas Safety Regulations for specific requirements on gas-burning appliances.
eBay
4pcs Radiator Pipe Covers 15*200mm 300mm 500mm Radiator Pipe Covers Black White Radiator Pipe Covers Pipe Decorative Cover
Aliexpress UK
This can vary due to your boiler but for most purposes 75mm above the boiler flue. Protects your boiler from damaging rain ingress in heavy rain and wind. It was also protect your boiler in the event of guttering failure.
eBay
88 size Patio Furniture Covers, Outdoor Furniture Cover Waterproof, Outdoor Table Cover
Aliexpress UK
Not suitable for condensing boiler flues or coastal installations, due to corrosive effects of both types of installation. ZINC PLATED.
eBay
Shower Faucet Cover Faucet Decorative Cover Round Pipe Wall Covers ABS Faucet Decor Faucet Accessories for Shower Kitchen
Aliexpress UK
This can vary due to your boiler but for most purposes 75mm above the boiler flue. Protects your boiler from damaging rain ingress in heavy rain and wind. It was also protect your boiler in the event of guttering failure.
eBay
Patio Furniture Covers, Table and Chair Covers Waterproof, Dustproof, UV-Resistant 210D Oxford Fabric Protective Covers
Aliexpress UK
This Boiler Flue Rain Snow Cover is designed to protect your boiler flue from rain and snow, ensuring that your heating system continues to function efficiently. Made from durable black plastic, this flue cover is suitable for various boiler brands such as Vaillant, Baxi, Ideal, Glowworm, and Worcester. The cowl design helps to prevent rainwater from entering the flue, while the vent cover ensures that the vent is not blocked. Easy to install, this accessory from the United Kingdom is a practical addition to your home plumbing system.
eBay
Shower Trap Cover Universal Shower Plughole Cover Removable Waste Trap Cover
Aliexpress UK