Flues & Accessories

At City Plumbing, we understand the importance of a well-functioning heating system, and boiler flues and accessories are at the heart of it all. 

Whether you're installing a new boiler or upgrading an existing setup, our extensive range of boiler flue kits ensures safe operation, enhanced efficiency and compliance with regulations.

Browse leading brands such as Alpha, Baxi and Glow-Worm to choose the right boiler flue for your requirements. Place orders over £75 and receive free delivery or select our convenient Click & Collect service.  

A boiler flue is a key component of any heating system, responsible for safely venting harmful gases, such as carbon monoxide, and water vapour away from your property. 

Without a properly installed flue, these byproducts could pose serious health and safety risks. Complemented by the right accessories, a boiler flue ensures optimal functionality and longevity of the system.

We offer a wide selection of high-quality flues and accessories tailored to various boiler types, including combi, system and regular boilers. Our products meet the highest industry standards, ensuring reliability and durability.

Our horizontal and vertical flues are designed to suit different installation layouts. Horizontal flues are ideal for wall-mounted boiler setups, while vertical flues are best for routing gases through roofs in multi-storey buildings. The Baxi Standard Horizontal Flue Kit is suitable for making a quick and easy upgrade to multiple appliances.

Boiler flue extensions provide additional length for systems installed far from external walls or roofs. They ensure safe venting over long distances without compromising performance.

Flue bends and elbows enable flexible routing around obstacles in your property and are available in multiple angles to suit complex installations. The Baxi Standard Flue and Elbow facilitate the safe removal of steam and gases resulting from your boiler's normal operation.

Tradespeople, homeowners and DIY enthusiasts have relied on us for their plumbing and heating supplies for over 40 years. We're proud to offer high standards of customer service and our thousands of positive Trustpilot reviews testify to this.

The majority of our boiler flue spares are available for next-day delivery and orders over £75 qualify for free delivery. Alternatively, use our Click & Collect service to suit your schedule. 

Don't forget to download the City Plumbing app to receive 15% off your first in-app order. Earn points when you sign up for My City Plumbing Rewards and redeem them against your next purchase.

Browse our wide range of boiler flue accessories today and find everything you need for a seamless installation or upgrade. Use our branch finder to locate your nearest showroom – there are over 350 of them! – and speak to our experts about specific products. For general enquiries, get in touch via phone or email.