An office image of Frenger's Hydroplank Chilled Ceilings successfully installed


Frenger's ® extruded aluminium Hydroplank™ Chilled Ceiling solutions, allow large portions of the roof soffit to be activated to provide uniform cooling and heating into the occupied space, with minimal air movement and therefore exceptional thermal comfort with the highest performance possibilities on the market for such raft and/or ceiling systems.

An image showing a render of Frenger's white Hydroplank ceiling with lighting integrated within the raft itself


When a full ('wall to wall') plank ceiling aesthetic is required, the acitvated raft sections are fully factory assembled by Frenger and delivered as complete units. The 'wall to wall' dummy sections are also delivered in factory assembled sections complete with key slot mounting brackets to enable easy removal should you wish to access the ceiling void at the sides and ends of the activated raft sections.

An image showing Frenger's Hydroplank Chilled Ceilings installed inside an office area


Activated raft sections can be fully cooling or fully heating if a 2 pipe system is desired and appropriate switch over control valve from CHW to LTHW is utilised. Alternatively a 4 pipe system can be adopted for each raft where approximately 70% of the waterways (15mm OD copper) are a closed cooling circuit with its own flow and return tails (2 pipe connections for Cooling) and approximately 30% of the waterways (15mm OD copper) are a closed Heating circuit with its own flow and return tails (2 pipe connections for Heating).

A photograph showing Frenger's CNC Serpentine bend machine at their factory in their UK headquarters


The Hydroplank™ Chilled Ceiling uses copper tube from Frenger's in-house full CNC automated "State of the art" serpentine bending machine, which produces seamless sinusoidal copper coils with no risk of leaks as there are no joints whatsoever as each serpentine coil comes straight off one thousand metre drums of copper as the photograph above. The copper tubes fit directly into the pipe seat of the extruded aluminium "Planks" which have been designed to give optimal metal-to-metal contact to ensure maximum heat transfer.

A render of Frenger's Hydroplank® with a close-up view of the end caps


Frenger's ® Hydroplank™ Ceiling solutions can be supplied as stand-alone rafts or integrated into our full ceiling solution for a clean visual aesthetic. Frenger also offer their LED luminaries which are designed to seamlessly integrate into their heating and/or cooling Hydroplank™ ceiling rafts. Frenger ® have made use of their MSCB (Multi-Service Chilled Beam) extruded polycarbonate lighting technology to develop a slimline LED luminare to operate with an extruded polycarbonate diffuser optic that is the same profile as their extruded aluminium heating and/or cooling plank sections. With the approach clients and/or professional teams can choose alternative lighting solutions

An office containing the Hydroplank® chilled ceiling from Frenger Systems installed inside


Product Performance

Below is a Hydroplank™ chilled ceiling Cooling and Heating performance graph, as well as a cooling and heating correction graphs. Note: Cooling performance should be multiplied by the "correction factor" table below dependant upon how many chilled raft sections are linked together in series for total chilled water mass flow rate.



In-house Testing Facilities

Frenger ® have at their Pride Park facility in Derby, UK, in-house Photometric Lighting Laboratory for mapping the lighting distribution (Polar Curve) and an Integration Chamber for proving the LOR (light output ratio) to compliment their three Climatic Laboratories and also an Acoustic Laboratory.


If you require any further information, or have a project to discuss, please contact us on +44(0)1332 295 678 or sales@frenger.co.uk as our technical team are here to assist. Frenger Systems also offer in-depth Remote Design Support Meetings with our design engineers located at our UK headquarters in Pride Park, Derby.