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Metal chimney systems provide a quick and economical way to install a chimney in a new or existing property. They feature a simple push fit or twist lock-jointing arrangement for rapid installation and have a comprehensive choice of pipe sections, bends and fittings.

Our ICS insulated metal chimney, often called “Class 1” is used for wood or multi-fuel burning stoves and open fires. It can also be used with oil or gas burning appliances. An insulated oil or K vent system is limited to use with certain types of oil-fired appliances and most gas appliances. A Twin wall or gas vent system is limited to use with gas fired appliances and certain types of oil burning appliances.


The ICS Insulated Metal Chimney System

This system made to a very high quality standard is considered to be one of the best and most robust CE marked systems available. It has passed stringent performance testing and is featured in the HETAS list of approved chimney systems.

The chimney sections have simple “push fit” jointing for easy assembly. The high quality stainless steel inner liner is surrounded by insulation and a stainless steel outer casing to give maximum performance and durability.

It is suitable for use with solid fuel, coal or wood burning heating appliances, including open fires and there is a comprehensive choice of pipe sections, bends and fittings to suit almost any arrangement.

The ICS system is ideal for use in barn conversions and for installation with the wide range of modern and contemporary stoves distributed by Topstak.

The chimney sections and fittings have a standard “shiny” stainless steel appearance, and we can supply alternative finishes such as powder coated matt black, which is a good way to get the chimney above a roof to blend in with roof slates.

We carry large stocks of the standard diameters of 130mm (5 inch), 150mm (6 inch), 180mm (7 inch) and 200mm (8 inch). Other diameters up to 600mm (24 inch) are also available.

The ICS system can also be used above a standard brick built fireplace or with a precast concrete firechest to suit solid fuel and also decorative flame effect gas open fires.


Brochures and Installation Instructions:

Single wall Flue pipes
It is really important to make a good connection between a wood burning stove and chimney using a single wall connecting flue pipe.

We stock the 1mm thick 316 grade Prima Smooth stainless steel in the standard 130, 150, 180 and 200mm diameters.

It is made to a really high standard with a choice of straight and telescopic pipes as well as various bends. They have a generous push fit spigot and socket connection with an optional locking band.

The flue pipes can be easily sprayed on site with the same paint as the stove being fitted.

We also stock vitreous enamelled flue pipes. Metal Chimneys for Oil or Gas Appliances


B Vent – Twin Wall Gas Vent

This system is specifically designed for use with gas fires and consists of aluminium inner liner surrounded by an insulating airspace and zalutite metal outer casing. It is cost effective answer for installing a chimney above a gas fire, this system is also suitable for connecting a gas flue block system to a ridge vent terminal.

B Vent Brochure

We can help with ideas and answers for almost any situation, so please call us. Our friendly technical sales team are also HETAS registered, so you can be sure of a professional and enthusiastic service.

A few words about Building Regulations It is a legal requirement that all chimney installations comply with the Building Regulations, which for England and Wales is explained in the Approved Document J. These are minimum requirements aimed at making sure installations are safe. There are also Planning Permission requirements, which are explained on the Regulations page.