The Ultimate Chimney Systems for Prefab Builders & Installation Professionals

We are a specialized store and contractor for chimney systems, combining sales, installation, and expert consulting for new constructions and renovations. Operating in Slovenia and throughout the European Union, we work exclusively with trusted materials from renowned manufacturers Schiedel, Jeremias, and Diminox. With us, your chimney is planned, built, and installed without compromise.

Past projects

Ovens

Engineered for Your Business

For Chimney & Fireplace Professionals

Expand your offerings with world-leading INOX systems. Our strategic pricing model enhances your profitability, while the simple push-fit and twist-lock installations reduce on-site labor, allowing you to complete more jobs. Backed by robust guarantees and our 45-year service legacy, you can sell and install with absolute confidence, reducing callbacks and building a reputation for quality.

For Prefabricated & Timber Frame Builders

Integrate safety and efficiency into your homes. Lightweight, modular INOX systems are ideal for timber frame construction, minimizing structural load and enabling rapid on-site assembly. With certified low distances to combustible materials and designs that support modern building standards, our systems are the perfect fit for energy-efficient housing.

The Fumex Service Commitment

World-class products backed by decades of hands-on expertise.

Expert System Consultation

Our specialists analyze your project's technical and budgetary requirements to recommend the optimal system, ensuring performance and value.

Precision Installation & Commissioning

Our teams, backed by 45+ years of experience, ensure every system is installed to exacting standards and complies with all local building regulations.

Specialized Renovation Services

We are experts in the relining and upgrading of existing chimneys, utilizing advanced products like Schiedel TecnoFlex to solve complex challenges with minimal disruption.

Custom Fabrication

For unique architectural designs, our in-house workshop can fabricate bespoke stainless steel components to ensure a perfect fit and seamless integration.

Why choose Fumex?

Unrivaled Quality: Exclusive access to world-leading, fully certified INOX chimney systems.
Strategic Project Value: Premium technology priced to maximize your ROI through lower installation and lifetime ownership costs.
Decades of Proven Expertise: A foundation of over 45 years of specialized, hands-on chimney installation and fabrication service.
Guaranteed Performance: Systems backed by the industry's most robust certifications and guarantees, including options for lifetime coverage.
A True Partner for Installers & Builders: From initial technical consultation to final commissioning, we are your dedicated, expert partner.

Ready to Elevate Your Next Project?

Discuss your requirements with a Fumex system expert today. We will provide a detailed, no-obligation analysis and quote tailored to your project's specific needs, timeline, and budget.

Our INOX System Specifications

Schiedel ICS (Insulated Chimney System)

The universal workhorse for new builds and retrofits, suitable for all standard fuels. Its twin-wall construction with high-density Superwool™ insulation maintains high flue gas temperatures, improving draught and minimizing condensation. The simple push-fit jointing system dramatically reduces on-site labor hours, lowering project costs. As the only system to pass the GASTEC corrosion test, its 316L stainless steel liner guarantees exceptional durability.

Schiedel ICID Plus

Engineered for modern, high-efficiency heating like pellet stoves, biomass, and condensing boilers. Its advanced design allows the inner liner to expand and contract independently, ensuring structural integrity even under extreme thermal stress—a critical safety feature for integrated building systems. The secure twist-lock jointing provides exceptional rigidity, and the system is ready for positive pressure applications, making it a future-proof investment. The ICID Plus is backed by a comprehensive Ten Year Guarantee.

Schiedel TecnoFlex

The premier problem-solver for relining existing masonry chimneys with difficult bends and offsets. Its twin-skin flexible design allows installers to navigate challenging flue paths without costly demolition. The exceptionally smooth inner wall improves condensate drain-down and reduces soot buildup, while the engineered interlocking joint ensures the liner will not separate during installation—saving time and ensuring a reliable outcome for renovation professionals. Available in high-grade 316L or 904L stainless steel and backed by a Ten Year Guarantee.

Technical data

Diameter (internal): 80 – 1200 mm
Diameter (external): 130 – 750 mm
Pipe wall thickness (depending on diameter): 0.5 – 1.0 mm
Insulation thickness (depending on diameter): 25 / 50 mm
Wall thickness – external (depending on diameter): 0.5 – 0.7 mm
Weight (depending on diameter): 4.4 – 22.4 kg/m
Areas of application – Max. flue gas temperature: ≤ 600 °C
Material (flue pipes): Material no.: 1.4404
Material (insulation): Mineral fibers
Material (external): Material no.: 1.4301
Thermal resistance (m²K/W): 0.37 – 0.56 m²K/W
Operating conditions: Dry, Humid, Negative pressure (N1), Positive pressure (P1)
Operation independent of room air: No
Heating appliance connection options: Single, Multiple
Suitable for passive buildings: No
Heating appliance type: Condensing heating appliances, Low-temperature heating appliances, Conventional heating appliances