• Warmup Undertile Heating is suitable for use under any ceramic or natural stone floor tiles including: Slate,Marble,Porcelain,Limestone,Terracotta.
• Warmup Undertile Heating MUST NOT be fitted under:Vinyl,Wood (incl. Laminate),Cork,Carpet.
• Multiple Heaters can be added to cover areas up to 25 square metres. (See Table Below).
• Systems are designed using a 3mm, ultra-thin, dual-core heating element. The small cross-section of our element allows it to be installed in a matter of hours without raising floor levels.
• There is no need to dig up the floor and no need to mix concrete. Simply fix our heating element to the subfloor, tile straight over and say goodbye to cold feet for good!
  
• Product Brochure
• Technical Specification
• Installation Instructions

The WarmUp undertile Heating system is ideal for either wooden or concrete subfloors. The WarmUp system can be inexpensively installed in hours without the need for specialst tools or skills. There is no need to dig up the floor and no need for concrete work. The WarmUp heating element is simply taped to the floor and tiled over... it's as simple as that.

In addition to regular floor finishes, a cement-based smoothing underlayment can be used to cover or protect the heater as part of pre-tiling work (e.g. when laying flagstones). The floor must be tiled using a cement based tile adhesive and grout containing their matching flexible additive, strictly in accordance with their manufacturers' instructions.

SUBFLOOR PREPARATION
The underfloor heater may be fitted on either a suspended (timber) or a solid (concrete) subfloor. The subfloor must be smooth, clean and free from old adhesive residues or bitumen.

If damp-proofing or tanking systems are being used, it is advisable to contact the manufacturer of the system for advice. Normally, it will be necessary to apply at least 5mm of smoothing underlayment on top of the finished tanking.

Suspended Floors - Timber
When fitting the underfloor heater to a timber subfloor, the floorboards or chipboard must be over-boarded with a suitable Warmup Insulation Board or 18 mm WBP plywood. Existing floorboards must be fixed securely and, if necessary, pre-levelled with a latex/cement smoothing underlayment to give a flush fit for the WBP plywood or the Warmup Insulation Board. Ply must be screwed at 200m centres and installed as per BS 5385: Part 3 Clause 14.4 .

Warmup Insulation Board must be fixed with flexible tile adhesive. For best performance the board should also be secured with five screws and penny washers per board.

Warning:
Fixing ply directly to the joists may not provide a sufficiently stable floor finish to accept tiles; fitting tongue and grove flooring and then over-boarding with ply or Warmup Insulation Board is recommended.

Chipboard, MDF and OSB boards are not appropriate bases for tiling.

Solid Floors - Concrete
If tiling on a concrete floor, Warmup recommends the use of Warmup Insulation Board to improve the performance and efficiency of the underfloor heating system. Warmup Insulation Board is fixed directly to the subfloor with tile adhesive. The heater is then fitted directly on top of the board before being tiled over.
Un-insulated concrete or screed subfloors may also be fitted with the Warmup Undertile Heating System, however they will be less responsive and take significantly longer to heat up (sometimes in excess of 8 hours).

Extended heat up times will lead to higher running costs.