Recuperation systems

Heat Recovery Systems: Energy Efficiency and a Healthy Indoor Climate

Heat Recovery Ventilation (HRV or MVHR) is a cornerstone of modern construction in Europe and a mandatory requirement for Nearly Zero-Energy Buildings (NZEB) in the EU. The principle is simple: the system extracts heat from the exhaust air and transfers it to the fresh supply air without mixing the two streams. This allows for a 24/7 supply of fresh, filtered air while retaining up to 98% of the thermal energy that is typically lost during conventional window ventilation.

SIA "Akvilon" is a European engineering company and manufacturer offering comprehensive heat recovery solutions. We supply certified units from leading European brands (KOMFOVENT, PRODMAX) and manufacture key system components, including metal and flexible ductwork, as well as custom fittings. Our solutions guarantee a healthy indoor climate, reduce heating costs by up to 50%, and ensure full compliance with strict EU Ecodesign (ErP) directives and European building standards.

Key Advantages of Working with Akvilon

• Certified High Efficiency: We offer units with a certified heat recovery efficiency of up to 98%, far exceeding the mandatory EU ErP directive minimum of 73%.
• Premium Components: Our solutions feature equipment with best-in-class components: RECAIR heat exchangers, energy-efficient EBM PAPST EC fans, and innovative Neopor/EPP housing insulation.
• Guaranteed System Airtightness: We manufacture and install VENT-FLEX flexible ducting systems with an anti-bacterial silver nanoparticle coating, ensuring certified Class C airtightness.
• Intelligent Control: Our systems are equipped with smart automation (KOMFOVENT C6/C8), support Building Management System (BMS) integration, and often come in a 'plug-and-play' format for rapid deployment.
• Full-Cycle Service from a Manufacturer: We design the system, manufacture custom ductwork, handle professional installation, and provide service, taking full responsibility for the final result.
• Expertise in EU Regulations: We guarantee your system will fully comply with all relevant EU directives (ErP, SFP) and European standards, protecting you from compliance risks.

Our Product Range: Air Handling Units and Ductwork

We provide a complete solution, including air handling units from European manufacturers and all necessary components for the air distribution network, produced in-house by Akvilon:

• Heat Recovery Units / AHUs: Supply and extract units from Komfovent, Prodmax, and Luna for residential and small commercial applications (50–1000 m³/h).
• Ductwork (Metal and Flexible): Ventilation network components made from galvanized or stainless steel, and flexible VENT-FLEX ducts with a biocidal coating, ensuring Class C airtightness.
• Plenum Boxes (OC, GM, PK): Components for concealed installation, connecting flexible ducts to the final air terminals (diffusers).
• Distribution Boxes (OC, GM, PK, TPK): Manifolds used to divide or collect airflows between the heat recovery unit and the ductwork network.
• Ancillary Components: Fasteners, filters, dampers, sensors (CO₂, humidity), and automation elements to fully complete your system.

Key Components of a Heat Recovery System

The efficiency and reliability of the entire system depend on the proper selection of its core elements: the air handling unit, the ductwork, and the automation.

Air Handling Units (Heat Recovery Units)

We offer two main types of units from leading European manufacturers:

• Rotary Heat Exchangers (KOMFOVENT DOMEKT): An ideal choice for colder climates. The rotating wheel recovers not only heat (up to 90%) but also moisture (up to 80%), preventing dry air in winter and eliminating the need for condensate drainage.
• Counterflow Plate Heat Exchangers (PRODMAX, DOMEKT CF): Provide maximum hygiene by ensuring 100% separation of air streams. This is critical for people with allergies. PRODMAX models with RECAIR heat exchangers achieve a record-breaking efficiency of up to 98%.

Ductwork Systems (VENT-FLEX)

The standard for modern residential buildings. Flexible plastic ducts are easy to install discreetly (in concrete screed, above ceilings), and their inner surface has a special biocidal coating with silver nanoparticles to prevent bacterial growth. We offer several versions (Standard, Premium, Premium Plus) to provide the optimal price-performance solution for your project.

Automation and Controls

The 'brain' of the system, ensuring its economical and correct operation. Modern controllers (KOMFOVENT C6/C8) allow you to manage the ventilation from your smartphone, while additional sensors (CO₂, humidity) enable 'ventilation on demand'—the system automatically increases its performance only when needed, saving up to 80% on electricity.

Compliance with EU Directives and Standards

As a European supplier, all our products and solutions adhere strictly to EU-wide regulations. This ensures that your ventilation system is not only efficient and safe but also fully legal and compliant for commissioning anywhere in the European Union.

• ErP Directive (Ecodesign 2009/125/EC): All our units meet or exceed the minimum energy efficiency requirements for heat recovery (73%) and fan power (SFP), guaranteeing low operational costs.
• CE Marking: All equipment bears the CE mark, confirming its compliance with EU safety, health, and environmental protection standards.
• EN Standards: Our components are manufactured and tested according to harmonised European standards, including EN 12237 (ductwork airtightness) and EN 13053 (AHU ratings), ensuring predictable and reliable performance.

Get a Quote for Your Heat Recovery System

Our engineers are ready to develop a technical solution and fully equip the heat recovery system for your project. You can purchase standard components, heat recovery units, and ductwork online in our web shop, with delivery across the EU.