Overlay® Lite 15 underfloor heating

The Overlay® Lite 15 boards are installed directly over an existing structural floor (solid or timber floor deck) for minimal disruption to your build or renovation project.

The profile of these boards is slightly higher than our other Overlay® systems, sitting at 22mm rather than 18mm. This is so that the system can use 15mm diameter pipe rather than 12mm. The larger pipe diameter means larger spaces can be covered quickly and with fewer circuits, making this system particularly well suited to larger projects. The advantage of having fewer circuits is that a single manifold can service a much larger space.

As with our other Overlay® systems, the pre-grooved boards hold the pipe in place. No additional insulation is required and this system is suitable for most finished floor coverings.

If you are unsure which Polypipe Underfloor Heating system is the best fit for your project, our team of in-house specialists would be happy to discuss your project and make a recommendation. Simply give us a call on 01709 772380.

Features & benefits of the Overlay® Lite 15 system

  • Uses 15 mm pipe so requires fewer circuits per room
  • 22mm panel profile
  • Simple installation
  • Lightweight pre-grooved boards
  • Brings room to temperature quickly

Key design information

Typical heat output at 50ºC mean water temperature Approx. 65 W/m2
Recommended design flow temperatures 45-50ºC
Maximum circuit length 100m (15mm pipe)
Maximum coverage per circuit 20m2 at 200mm pipe spacing
Dimensions Floor Panel: 1200mm x 800mm x 22mm
End Returns: 800mm x 300mm x 22mm

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Simply send us your plans and we’ll send you a quote back within 3 hours*

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* For single home projects where all required information is supplied, our usual turnaround times for quotes will be within three hours, within our normal working hours of Monday to Friday, 9am-5pm. A member of our Underfloor Heating team will contact you promptly to discuss the details of your project and confirm your expected quotation time.