Adept AD-EPS400 Slim Water Underfloor Heating Kits

Adept AD-EPS400 Slim Water Underfloor Heating Kits

15m2
£878.99
Sale price  £878.99 Regular price 
Skip to product information
Adept AD-EPS400 Slim Water Underfloor Heating Kits

Adept

Adept AD-EPS400 Slim Water Underfloor Heating KitsAdept AD-EPS400 Slim Water Underfloor Heating Kits

£878.99
Sale price  £878.99 Regular price 

Product code: UFHK15-EPS400

Low stock
Price includes VAT Next-day delivery available on stocked items

The Adept AD-EPS400 is a low-profile water underfloor heating kit built around pre-routed, foil-topped EPS panels.

Designed for refurbishment and new-build projects where floor height is limited, the system adds approximately 20mm before the final floor finish. It can be installed over dry, level concrete, screed or suitable timber floors, with the routed panels acting as both a heat-spreading layer and pipe retainer.

Why choose the AD-EPS400 system?

  • Low-profile 20mm panel construction minimises the increase in floor height.
  • Pre-routed channels simplify the pipe layout and hold the pipe securely during installation.
  • Foil-topped EPS panels help spread heat across the finished floor.
  • Suitable for installation over many properly prepared existing concrete, screed and timber floor bases.
  • Tiles can be installed over the correctly prepared system using the recommended compatible adhesive or underlay.
  • No need to excavate an existing concrete floor when the system can be installed as an overlay.

What is included with each AD-EPS400 kit?

Each kit contains the pre-routed foil-topped EPS panels, heating pipe, pipe connectors and the appropriate control arrangement for the selected coverage.

Kit components by size

The quantities below are taken from the 2026 AD-EPS400 kit schedule. Choose the kit using the clear floor area that will actually be heated, excluding fixed kitchen units, sanitaryware and other permanent furniture.

Swipe to view all kit components →

Kit size Control arrangement Manifold ports Pipe supplied AD-EPS400 panels
15m² Single-loop control pack — 100m 23
30m² Manifold and control pack 2 200m 46
45m² Manifold and control pack 3 300m 69
60m² Manifold and control pack 4 400m 92
75m² Manifold and control pack 5 500m 115
90m² Manifold and control pack 6 600m 138
105m² Manifold and control pack 7 700m 161

Also included with every kit: pipe connectors and the components shown for the selected control arrangement.

How is AD-EPS400 installed?

Prepare a dry, level and suitable concrete, screed or timber floor base. Lay the AD-EPS400 panels, then press the heating pipe into the pre-routed channels. The foil-topped board retains the pipe and forms part of the completed floor build-up. Pressure-test the pipework before applying the specified adhesive, underlay or floor-finish system.

Floor-finish guidance

  • Tiles: can be installed over the correctly prepared AD-EPS400 system using the recommended compatible tile adhesive or underlay.
  • Wood, vinyl and carpet: install using a suitable build-up that meets the floor-finish manufacturer's requirements.
  • Compatibility: follow the requirements of the flooring, adhesive, underlay and panel manufacturers.

System planning

Confirm the room heat loss, substrate condition, available floor build-up and final floor finish before installation. Select the kit by the clear heated floor area and have the system connected, tested and commissioned by a suitably competent installer.

Key Features & Specs

  • System type: Low-profile overlay water underfloor heating
  • Panel construction: Pre-routed, foil-topped EPS panel
  • Panel thickness: 20mm
  • Additional floor height: Approximately 20mm before the final floor finish
  • Panel function: Acts as a heat-spreading layer and pipe retainer
  • Suitable floor bases: Dry, level concrete, screed and suitable timber floors
  • Suitable floor constructions: Solid/screed, beam-and-block, suspended timber and batten floors
  • Suitable floor finishes: Tiles, wood, vinyl and carpet, subject to suitable preparation and the relevant manufacturers’ requirements
  • Tile installation: Tiles can be installed over the correctly prepared system using the recommended compatible tile adhesive or underlay
  • Installation method: Overlay installation without excavating a suitable existing concrete floor

Related Products