TQ-Air is a pre-insulated ventilation ducting system combining thermal and acoustic insulation in one prefabricated solution. Engineered specifically for heat recovery ventilation (HRV) and HVAC systems, it prevents condensation on supply and return ducts, saves energy, and ensures healthy indoor air quality. Vapour-tight polyolefin foam insulation with mechanically strong PE outer casing. Available in 160/125mm, 200/170mm, and 250/200mm. Service temperature: –40°C to +95°C. Cradle to Cradle Silver certified.
Healthy indoor climate with energy-efficient ventilation.
Balanced ventilation ensures healthy air quality and comfort in homes and buildings. Warm indoor air is regularly refreshed and mixed with colder air from outside, while heat recovery units use exhaust air heat to warm incoming fresh air before distribution. A common problem with HRV systems is condensation on supply and return ducts. TQ-Air® solves this with vapour-tight, water-repellent polyolefin foam insulation that prevents moisture buildup, corrosion, moss, and mould formation.
TQ-Air integrates thermal and acoustic insulation in one prefabricated system, reducing heat losses and minimizing noise transmission from units and airflow. The mechanically strong, impact-resistant PE outer casing protects ducts during installation and operation. Components are easy to install, simple to shorten on-site, and connect with flexible EPDM rubber fittings that ensure uppermost airtightness class. Reducing connections enable easy linking to HRV units and roof or wall terminals.
Applications:
- Heat recovery ventilation (HRV) systems
- Balanced ventilation with filtration and dehumidification
- HVAC air distribution systems
- Residential and commercial ventilation
- Supply and return air ducting
- High-end HRV unit connections
Performance you can trust
Why choose TQ-Air
Choose TQ-Air® with confidence, sustainable, flexible, pre-insulated ducting system for your HRV projects.
Energy Savings
Integrated thermal insulation reduces heat losses and supports efficient heat recovery ventilation.
Condensation Prevention
Vapour-tight, water-repellent foam prevents moisture buildup and protects against corrosion, moss, and mould.
Durable & Impact-Resistant
Mechanically strong PE casing provides protection and flexibility for various routing situations.
Sustainable & Recyclable
Cradle to Cradle® Silver certified, 100% recyclable, REACH and RoHS compliant.
Easy, Airtight Assembly
Flexible EPDM connections and simple shortening enable failure-free installation with complete system airtightness.
Noise Reduction
Acoustic insulation minimizes sound from units and airflow (20 dB(A) for 160/125mm, 14 dB(A) for 200/170mm).
Air bends
T piece reduction
Insul duct
Roof terminal
System connectors
Combi wall terminals
Insul duct
Flat flashings
Witness our impact in every project
EXPERIENCE THE THERMAFLEX DIFFERENCE
Why work with us
Thermaflex combines decades of expertise with a commitment to sustainable innovation. As your trusted partner, we deliver more than products, we provide comprehensive technical support, proven solutions, and collaborative partnerships that help you achieve project success, regulatory compliance, and long-term operational efficiency across various markets and applications worldwide.
Trusted benefits
- Expert support
- Global experience
- Reliable delivery
- Flexible solutions
- Innovative approach
Partner advantages
- Sustainable practices
- Technical guidance
- Long-term partnerships
- Proven quality
- Customer-focused
FREE WHITEPAPER
How the choice of insulation materials solves common heat pump issues
In many situations, co-development can increase the chance of success by sharing knowledge, resources, and risk. This way, you can lift your business to a higher level and strengthen your competitive position in the market. If you recognize one of the 7 points mentioned in our free white paper, you should consider a co-development partner.
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