Oval chimney liners

RENOFAST 600    DN (80-130)      EN1856-2-T600-N1-D-Vm-L20050-G(500)

RENOFAST 600    DN (150-800)    EN1856-2-T600-N1-D-Vm-L20060-G(500)

RENOFAST 600 plus      DN (80-130)      EN1856-2-T600-N1-D-Vm-L50050-G(500)

RENOFAST 600 plus       DN (150-800)    EN1856-2-T600-N1-D-Vm-L50060-G(500)

• Proven Reliability and Time-tested Quality: With over 20 years of experience in designing and manufacturing chimney systems at our own factory in Riga, we uphold the highest standards of accuracy, longevity, and safety. Precision laser cutting and robotic welding ensure perfect geometry and exceptional durability of every component.
• Materials for Every Challenge: We offer solutions for a wide range of conditions — from the basic AISI 304L stainless steel series (0.6 mm, up to 850 °C) to a premium AISI 316L version (up to 1 mm thick), ideal for high-temperature and high-acidity environments.
• Wide Range of Standard Sizes: Our standard dimensions — 220×115 mm and 180×115 mm — are compatible with 95% of all chimney flue channels and are always in stock at our warehouse in Riga for fast and reliable delivery.
• Flexibility and Custom Solutions: Need a non-standard solution? We can manufacture custom chimney modules — in any size, angle, or configuration. Minimum order starts at just €50. We work with drawings, specifications, and sketches.
• All-in-One Service: We offer a full spectrum of chimney system services — from on-site measurement and design to turnkey installation. You’ll receive all the necessary documentation for building approval and insurance purposes.
• Fast Logistics: We value your time — that’s why we guarantee same-day dispatch for in-stock items. Delivery takes 1–3 days across Latvia and 5–10 days within the European Union.
• Fair Pricing: We offer direct-from-manufacturer pricing with no extra markups. Special terms are available for wholesalers, contractors, and developers.
• Durability and Warranty: With Akvilon, you get a 10-year warranty and a stainless steel chimney liner system designed to last over 20 years with proper maintenance and installation.
• Full Certification: All products are fully compliant with EU quality and safety standards. Our chimney systems are CE-marked and certified according to EN 1856-1. Each order includes a declaration of conformity, test reports, and complete documentation for your peace of mind.

With the Akvilon Renofast system, you get a reliable, CE-certified stainless steel chimney lining solution — engineered for long-term performance, precise sizing, and full compliance with EN 1856-1 standards.

Renofast single-wall oval liners are the ideal solution for upgrading and restoring existing brick chimneys and ventilation shafts in both residential and industrial buildings. They significantly improve draught performance, effectively protect masonry from the corrosive effects of acidic condensate, and ensure safe, long-lasting removal of combustion gases from boilers, fireplaces, and stoves.

The oval shape of a single-wall chimney liner allows for maximum use of space within rectangular flue channels. It minimizes gaps and provides the largest possible cross-sectional area — which is essential for efficient draught and flue gas removal. This profile is especially valuable in tight spaces where installing a round liner of the required diameter is not possible. Thanks to the space-efficient profile, an oval liner significantly improves draught and enhances the overall performance of the chimney system.

These sizes were chosen to maximize the use of the available space in typical brick chimney flues:

Optimal Compatibility:

• The 220×115 mm profile is ideal for flue channels measuring 250–270×140 mm (“½ × 1 brick”). Perfect for connecting heating appliances with D-180 or D-160 mm outlets.
• The 180×115 mm profile fits 200×140 mm shafts (“½ × ¾ brick”) and is ideal for heating appliances with D-150 or D-130 mm outlets.

In both cases, the liner maintains a 20–25 mm clearance on each side, preserving over 90% of the original cross-sectional area.

Efficiency and Easy Installation:

• The tight fit ensures strong draught and prevents bottlenecks or turbulence.
•  The remaining clearance allows for smooth, hassle-free installation.

These two sizes are compatible with the vast majority of chimney shafts found in private homes and apartment buildings. That’s why we always keep them in stock — ensuring fast delivery and reliable order fulfillment.

Custom Solutions Available

We also manufacture custom chimney liners tailored to your exact specifications — providing solutions for any non-standard chimney installation.

Yes, we are the direct manufacturer. All our products are certified according to the highest European standards and carry the mandatory CE marking in compliance with EN 1856-1. This confirms that our oval chimney liners fully meet current safety and quality requirements, providing a reliable solution designed to last at least 20 years.

The entire production cycle of Akvilon Renofast oval liners — from engineering and design to final assembly — is carried out at our own facilities in Riga. We ensure impeccable quality at every stage using precision laser cutting, automated sheet rolling, and robotic seam welding. Each finished component undergoes rigorous quality control.

Thanks to our own warehouse, we maintain a steady stock of oval liners, ensuring fast order processing and prompt delivery.

We offer several material options to meet various performance demands and budget needs:

• Economy Option:Available in AISI 430 stainless steel, designed for use in environments with moderate humidity and condensation. This grade is suitable for operating temperatures up to 600 °C.
• Standard Series:Made from high-quality heat-resistant AISI 304L stainless steel with a wall thickness of 0.6 mm. This material provides excellent corrosion resistance and withstands continuous operating temperatures up to 850 °C.
• Premium Series:For the most demanding conditions and increased resistance to aggressive environments, we offer chimney liners made of AISI 316L stainless steel. This version features an increased wall thickness of up to 1 mm for maximum durability and extended service life.

Operating temperature:

We offer several material options to meet various performance demands and budget needs:

• AISI 430: Up to 600°C
• AISI 304L: Up to 850°C

Pressure mode:

• Natural draught systems operate effectively without additional sealing.
• Overpressure systems— such as those used with modern gas boilers — require:
  • High-temperature silicone gaskets
  • Specialized high-resistance sealants
  • A D-class tightness rating to ensure safe, leak-proof performance under pressure

Yes, all standard Akvilon Renofast chimney modules are always in stock at our warehouse in Riga. We maintain a consistent inventory, allowing us to quickly assemble and dispatch your order.

We offer fast, careful, and reliable delivery of Akvilon Renofast modules across Latvia and worldwide.

Delivery options and lead times:

• Door-to-door delivery: You’ll receive your order directly at the specified location — whether it’s a private home, warehouse, or construction site. Each shipment includes a tracking number for real-time status updates via the carrier's website.
• Within Latvia: 1–3 business days from the shipping date.
• Within the EU: 5–10 business days depending on destination.
• Self-pickup: You are welcome to collect your order directly from our warehouse in Riga.

We offer several convenient ways to place an order for Akvilon Renofast chimney systems, along with flexible payment options:

Ordering methods:

• Online store: Visit shop.akvilon.eu. Select the required Renofast modules, add them to the cart, and complete the checkout with your shipping details.
• By email: Send your item list, sketch, or project along with your contact details to info@akvilon.lv. We’ll quickly prepare a quotation and confirm availability.
• Via WhatsApp: Message us at +371 26336845. You can send photos, specs, or project sketches, and our manager will promptly calculate the cost and delivery time.

Payment methods:

• Bank transfer: Based on the issued invoice.
• Cash: Upon receipt or at the warehouse for self-pickup.
• Business payments: For legal entities, via invoice and contract.

We are confident in the quality of Akvilon Renofast liners and provide a 10-year warranty. To maintain this warranty, the system must be operated and serviced in accordance with the user manual — including annual cleaning, joint tightness checks, and certification from a chimney sweep.

In addition, all products come with a standard 2-year warranty covering manufacturing defects.

When properly maintained, Akvilon Renofast liners deliver a service life of at least 20 years, offering a durable and reliable solution for your chimney system.

Yes, we provide full turnkey installation of the oval chimney liner.

Our process covers all essential steps to ensure a reliable and professional setup, including:

• Preparation and opening of the chimney channel: We carefully open the existing brick flue to install tees from below and lower the liner from above.
• Professional installation and sealing: Our specialists perform precise installation of the Akvilon Renofast oval liner, with mandatory tightness checks for all joints.
• Connection of equipment: We expertly connect your boiler, stove, or fireplace to the new chimney system, ensuring proper operation and optimal draft.
• Sealing the opened brickwork: The exposed brickwork is carefully sealed after installation.

Upon completion of the installation, you will receive a full set of documents required for:

• Regulatory compliance: Receipts, delivery notes, and a Declaration of Conformity confirming the product origin and all necessary certifications.
• Successful commissioning and insurance: If needed, we also provide a chimney sweep’s certificate (available as a separate service).

Yes, installing the Akvilon Renofast chimney liner is entirely possible either by yourself or with the help of experienced installers. Our system features a modular design and is assembled using a simple and reliable socket joint connection, which significantly simplifies the installation process

However, to ensure the safety and efficiency of the system, it is crucial to follow these key points:

• Precise vertical alignment: Ensure the entire chimney system is strictly vertical.
• Proper sealing: Make sure all socket joints are tight and correctly assembled, taking into account condensate drainage and assembly direction.
• Fire safety: Strictly observe the required fire clearance distances from walls, ceilings, and other structures.
• Chimney ventilation: Provide adequate ventilation around the chimney flue.

We are always ready to provide you with full support: we will supply all necessary installation materials and provide detailed instructions promptly. If you have any questions, our specialists are available to consult you and explain every step in detail.

Yes, we have the capability to manufacture Akvilon Renofast chimney liners according to your individual dimensions and customer drawings. We can produce elements of any required height, angles, and adapters to perfectly meet your unique specifications.

• The minimum volume for a custom order is 50 EUR.

For an accurate cost calculation, simply send us your technical specifications or sketches. We will promptly prepare the design, calculate the cost, and provide the production timeline. If you have any questions or need assistance, our specialists are always ready to consult you and help choose the optimal solution.

Our experienced managers are ready to answer any technical questions and assist with precise calculation of your required components. You can order a free engineer-consultant visit for measurements (subject to subsequent order). Paid consultations with on-site visits within Riga and its surroundings cost 40 EUR + VAT; within Latvia – 60 EUR + VAT.