A rectangular boiler flue guard designed especially for non‑condensing oil boilers – model JS500 (11 × 11 × 10.5 in) – offers a simple, reliable way to keep the flue terminal safe from accidental contact.
Key features
– Dimensions: 11 in (280 mm) width × 11 in (280 mm) length × 10.5 in (270 mm) depth – fits standard rectangular flues.
– Robust construction: An automotive‑grade JS500 coating sits over a zinc‑based electro‑plate and is passivated for extra protection against the corrosive exhaust of oil boilers.
– Easy installation: Position the guard over the flue terminal and secure it with four supplied screws; no special tools are required.
– Safety compliance: Meets BS 5440‑1:2008 requirements for protective guards when terminals are less than 2.1 m above ground, balcony or flat roof level.
Why choose this guard?
The JS500 finish resists the harsh gases produced by conventional (non‑condensing) oil boilers, extending the life of your flue system while preventing injuries. It is not suitable for condensing boiler flues, where condensate can accelerate corrosion.
Perfect for residential installations, commercial retrofit projects, or any situation where a reliable barrier is needed to protect people and comply with British Gas and building‑code standards. Upgrade your boiler safety today with this durable, easy‑fit flue guard.





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