DIY Electric Underfloor Heating Installation

The use of insulation is advised on all floor types to reduce warm-up time and running costs

Installation under Ceramic Tiles in a Dry Area

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1. Ceramic Tile
2. Flexible Tile Adhesive
3. Heating Mat
4. Insomax or Marmox Insulation (min 6mm)
5. Floor Slab

Suspended floor with Ceramic Tiles

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1. Ceramic Tile
2. Flexible Tile Adhesive
3. Heating Mat
4. Insomax or Marmox Insulation (min 6mm) or 18mm WBP Plywood
5. Floor Board
6. Joist

Installation under Laminate, Engineered and Real Wooden Floor

(Floors must not be nailed down)

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1. Wooden Flooring
2. Heating Mat
3. 6mm Palziv or Softboard
4. Floor Slab (or suspended wooden floor)

Installation under Wall-to-Wall Carpeting

(When Carpet Tog factor is 2.0 or less & Underlay has a tog factor of 0.8 or less)

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1. Wall to Wall Carpeting (Hessian backed carpet, Tog value 2.0 or less)
2. Carpet Underlay (Tog Value 0.8 -1)
3. Heating Mat
4. 6mm Palziv or Softboard
5. Floor Slab (or suspended wooden floor)

Stuck Down Flooring (i.e. Amtico, Lino & some Wood)

Any floor that is glued down, a latex based self-levelling compound of at least 8mm must be used. This method is more time consuming.

Wet Rooms (i.e. Kitchens & Bathrooms, Toilets)

Grounding nets must be installed in all wet rooms. (i.e. kitchens, bathrooms/WC, utility)