Twin-Wall Chimney Systems with Natural Copper Outer Finish

Twin-wall chimney systems with a natural copper outer finish combine the technical characteristics of modular flue systems with an external finish designed for visible installations.

This category includes the De Marinis ISOAIR COPPER, ISO10 COPPER, ISO25 COPPER, ISO50 COPPER and CONDEX COPPER ranges, designed for different operating conditions, insulation requirements and appliance types.

The natural copper outer wall makes these systems particularly suitable for historic buildings, high-quality renovations and installations where the chimney needs to visually integrate with copper roofs, gutters, downpipes and other architectural metalwork.

Which copper twin-wall chimney system should you choose?

Natural copper outer finish

The common feature of these ranges is the natural copper external finish.

Copper is particularly suitable for visible external installations and can visually complement roofs, gutters, downpipes and architectural metalwork.

Natural copper may gradually change appearance when exposed to weather conditions. This is part of the material's natural ageing process.

ISOAIR COPPER – air-gap twin-wall system

ISOAIR COPPER uses a twin-wall construction with an air gap. The inner wall is made from AISI 316 stainless steel, while the outer wall is natural copper.

This construction helps keep the overall system dimensions compact compared with ranges using thicker insulation.

ISO10 COPPER – compact insulated chimney

ISO10 COPPER is an insulated twin-wall chimney with 10 mm insulation and a natural copper outer finish.

It is designed for installations requiring thermal insulation while keeping the external diameter relatively compact.

ISO25 COPPER – 25 mm insulated chimney

The ISO25 COPPER range uses 25 mm insulation and provides a versatile solution for visible chimney installations with a natural copper finish.

The range includes straight pipes, elbows, T-connectors, support components, terminals and accessories for configuring a complete chimney system.

ISO50 COPPER – increased thermal insulation

ISO50 COPPER provides the highest insulation level among the metallic ranges in this category.

It is intended for installations requiring greater thermal protection while maintaining the natural copper external finish.

CONDEX COPPER – system for condensing appliances

CONDEX COPPER differs technically from the ISOAIR, ISO10, ISO25 and ISO50 ranges.

It uses a polypropylene inner flue duct with an external copper casing and is designed specifically for condensing appliances.

It should therefore not be considered a simple copper-finish alternative to metallic chimney systems for wood, pellet or other high-temperature appliances.

Copper chimney systems for visible installations

Natural copper makes these chimney systems particularly suitable for:

• historic buildings and renovations;
• buildings with copper roofing and metalwork;
• external façades where the chimney should visually match gutters or downpipes;
• architectural installations where external appearance is important.

Available components

Depending on the selected range, components may include:

• straight chimney pipes;
• elbows;
• T-connectors;
• telescopic elements;
• inspection components;
• condensate drains;
• base plates and supports;
• wall support collars;
• terminals;
• installation accessories.

How to choose the correct system

Before purchasing, consider:

• the connected appliance;
• fuel type;
• combustion-product temperature;
• positive- or negative-pressure operation;
• possible condensate formation;
• required diameter;
• indoor or outdoor installation;
• required insulation level;
• clearance from combustible materials;
• the architectural requirements of the building.

ISOAIR, ISO10, ISO25 and ISO50 are not merely different visual versions of the same system: they have different constructions and insulation levels. CONDEX is instead a dedicated system for condensing appliances.

Browse the ISOAIR COPPER, ISO10 COPPER, ISO25 COPPER, ISO50 COPPER and CONDEX COPPER ranges below to select the appropriate chimney system and compatible pipes, fittings and accessories.