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Order before 11am and receive your order by Tuesday 23rd Jul

Availability: In stock

The GC1 is an effective way to terminate your system and doubles as a birdguard ensuring that birds and debris will not be able to enter the flue helping to prevent dangerous blockages.

The terminal can either be mortared into place or screwed to a liner if there is any exposed at the top of the chimney pot. 

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The GC1 is made in the UK from aluminium and then powder coated if required.

What is it for?

For use with either disused (redundant) or live gas systems, the GC1 doubles as both a device to terminate a gas system and an excellent birdguard helping to prevent any birds, vermin or even leaves from entering your chimney.

How do I fit one?

The GC1 can be fitted to a chimney pot using a sealant such as mortar or if there is any metal flue exposed then it can be screwed into the flue.

What will it fit onto?

A GC1 comes in 3 standard sizes of 100mm (4”), 125mm (5”), and 150mm (6”).

What options are available?

The GC1 is made from aluminium and can be either natural (unpainted) or painted terracotta, buff or black.

What if it won't fit?

Unfortunately because we do not manufacture this product ourselves, different sizes are not available. However, Brewer may recommend its UFO Multifuel Cowl as an alternative depending on the situation of the chimney. Please don’t hesitate to give us a call to receive advice on what you require!


Please note that the GC1 terminal is not suitable for decorative fuel effect fires.

Important Note

We advise that your chimney or flue is inspected and swept by a qualified chimney sweep before fitting a chimney cowl or terminal. We also recommend using a professional to specify the correct product for your fuel, chimney system, size and needs. If you require any help or advice please call us on 01243 539639.

We cannot take responsibility for any terminal or cowl that has not been specified or fitted by a professional and is not suitable for your application.