REHAU RAUVITHERM is a pre-insulated PE-Xa pipe available in UNO 25-160mm and DUO 25-63mm. Due to its low weight and high flexibility, RAUVITHERM is fast and easy to install. Connections (both tees and straight) use the RAUVITHERM shroud system, filled with highly insulating PU foam to ensure minimal heat losses at the pipe joints. RAUVITHERM also has a 5 year product warranty as standard.

Mibec are REHAU's number one independent authorised supplier. They have the largest UK stock of district heating pipes and we have worked in partnership with the REHAU team for over a decade, delivering numerous successful projects.

Our free pipe sizing and application service is available to all installers/consultants, and our quotations include full parts listings and advice on installation, if required. We have a network of authorised installers that we can connect you with for your installation. REHAU tools are readily available from hire companies, which we can also recommend.

Please feel free to email or call our expert team at 01782 959170. We will be happy to help you source the right pipe for your project.


District heating supply
Drinking and hot water supply
Cooling technology
Industry and agriculture
Connection of air-to-water heat pumps
Ground-source connecting pipes
Remote CHP / plant rooms
Anaerobic digestion / biogas plants


RAUVITHERM district heating pipes consist of carrier pipes (PE-Xa) with a primer and oxygen diffusion barrier (EVOH), insulation made from cross-linked, closed-cell PE foam sheet (λ = 0.043 W/mK) and a PE foamed corrugated ou- ter jacket to increase the ring stiffness and flexibility. In the case of DUO pipes, the location of the two carrer pipes in relation to each other is determined by extruded foam made of PE.


Flexibility for easy installation - Excellent flexibility due to corrugated outer jacket and closed cell insulation. Allowing for rapid installation and the ability to easily navigate over or around obstacles on site.

Robust HDPE outer jacket - to withstand demanding onsite conditions.

Size flexibility - Long coils of up to 300 metres are possible, allowing for faster and more cost-effective installations. Longer coils mean fewer accessories and connections, reducing parts and labour, the risk of leakages, and the time to install.

Excellent insulation - High insulating performance from closed cell cross-linked PE foam minimises heat loss.

Fully sealed design - The outer layer of foam is bonded to the outer jacket to prevent water ingress.

Leakproof - Uses leakproof REHAU Everloc compression sleeve technology.


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