50m2 Ultra Warm Tile Direct Insulated Panel System 25mm @ 150mm

Compatible with most modern boilers, our solid-floor tile direct system kits are perfect for use on existing floors or where digging down is not an option.

The versatility of this efficient heating system is also beneficial, perfect for heating a work or domestic premises. Even better, everything you need is included in the underfloor heating kit. 

System Coverage: 50.0 m2
Total Room Heat – Total Room Heating for all general rooms insulated to current building standards (150mm pipe spacing)

Incl. Vat: £1,530.00 £1,275.00
Availability: In stock
SKU
TDS50

25mm Ultra-Warm Tile Direct Insulated Panel System – 50m² (150mm Centres)

The 25mm Ultra-Warm Tile Direct Insulated Panel System – 50m² is specified for larger solid floor zones where efficient heat delivery beneath tile finishes is essential. Featuring a 25mm insulation layer and pre-routed panel channels at 150mm centres, this system is supplied as a complete package ready for professional installation on solid substrates, while helping to control heat loss into the floor structure.

This 50m² underfloor heating solution includes all elements required for trade-standard performance:

  • 25mm insulated panels
  • Pre-routed panel with 150mm spacing
  • 16mm underfloor heating pipework cut to match 50m² coverage
  • Fixings and installation accessories for secure fitting
  • Suitable for kitchens, living areas, and hallways with substantial floor space
  • Designed to support consistent surface temperatures through tiled finishes supported by a 5mm layer of levelling

The 25mm Ultra-Warm Tile Direct Insulated Panel System – 50m² delivers an underfloor heating package suited to solid tiled floors. With insulation, panel routing, and pipework configured together to deliver reliable heat distribution and a structured installation process, this system helps maintain professional standards on larger area projects.

Order today to ensure your next installation is equipped with a dependable and trade-ready underfloor heating solution.

Next Working Day Delivery

Applies to UK Mainland only. Order before 12:30pm Mon–Fri. Orders placed after 12:30pm Friday will arrive Tuesday. Saturday delivery is available at an extra cost.

Free delivery

UK Mainland orders over £250 (ex VAT). Larger or palletised orders outside UK Mainland may incur additional fees.

Additional Information

Deliveries are fulfilled by third-party couriers. Delivery times are estimates and we are not liable for delays. For detailed information about shipping, view our Shipping and Returns.

 
Item Qty
Novatherm Low Profile Overlay Panels
• 25mm x 1200mm x 600mm
70
“A” Rated Grundfos 15-50/60 Heat Pump 1
16mm Novatherm Professional Grade MLCP Plastic Piping 350
Novatherm 4 Port Dualix Manifold, including: 1
Manifold Isolating Valves 2
Temperature Gauges 2
Lockshields with flow meters on each port
Drain/fill valves with blank cap 2
Automatic air vents 2
Metal fixing brackets 2
Heatmiser Digital Thermostat 1
Pipe Reaming Tool 1
 

-- Remove all contaminants, dirt, grease etc from the substrate and make dust free.
-- Loose lay the boards across the floor and number the boards on the upper face to identify position of each board, making sure the pipework runs are calculated correctly to reach manifold position.
-- Uplift the numbered boards and prime the underside of the boards with Ultra Floor Prime-IT MSP bonding primer. This should be applied by brush or roller in a thin film. Allow to thoroughly dry to a clear green film ensuring primed face does not come into contact with other boards, walls or subfloor until it is ready to be bedded.
- -Drying time will depend upon ambient conditions but is typically between 1 and 4 hours.
-- Whilst the primer on the boards is drying commence with priming of the substrate using UltraFloor Prime-IT MSP. The primer should be diluted 3 parts water to 1 part primer and allowed to fully dry.
-- Apply flexible tile adhesive to the subfloor using a notched trowel to give a minimum 3mm adhesive bed. Bed the boards, primed side down, into the adhesive and ensure compression of adhesive ridges, ensure full compression of the adhesive to give a void free full adhesive bed. Additional use of  screws and washers is recommended over timber substrates where needed, fixed at every 300mm. Allow to cure for approximately 4 hours to ensure the adhesive has gone through its initial set before carrying out any further works.
-- Pipe work may be fitted into the boards once they are all secure. Where possible this is best left until the following day. It is recommended that the pipe system is checked for leaks and correct water pressures prior to tiling over.
-- Prime the upper face of the boards with Ultra Prime-IT MSP bonding primer. This should be applied by brush or roller in a thin film. Allow to thoroughly dry to a clear green film, (approx 1-4 hours).
-- Apply Ultra Floor Level-iT 2 two part smoothing compound over entire floor area, making sure all voids and gaps are completely filled, the levelling compound should encapsulate the whole floor and cover the board with a 5mm layer on top.
-- Allow to cure for 24 hours prior to carrying out any tiling. Cold and/or humid atmospheres will delay the curing of Level-iT 2 so allowances should be made accordingly.
-- Prime the cured Level-iT 2 using Ultra Floor Prime-IT MSP diluted with 3 parts water to 1 part primer. Allow to thoroughly dry.

Frequently Asked Questions

How does underfloor heating work with tiles?
Tiles are one of the best floor finishes for underfloor heating because they conduct and retain heat efficiently. The heating pipes are installed beneath the tiled surface, warming the tiles from below. The heat then radiates evenly across the floor, creating a consistent, comfortable temperature throughout the room. When installed with proper adhesive, insulation, and temperature controls, underfloor heating with tiles offers quick heat-up times, low running costs, and a durable, long-lasting heating solution suitable for kitchens, bathrooms, and open-plan areas.
What type of projects suit 50m² underfloor heating coverage?
A 50m² underfloor heating kit is best suited in medium open-plan spaces or multiple rooms zoned together where tiling is planned (kitchens, living areas, larger hallways).
Does installation of a 50m² underfloor heating kit require priming and levelling before tiling?
Yes, the 50m2 underfloor heating kit requires priming and levelling before tiling, it’s important to follow the stated process: prime, bed panels in flexible tile adhesive, pressure test pipework, then apply a levelling compound layer before tiling.