If your mirror has a metallic frame or a foil backing then you will require a grounding pad when using a 230V Demista pad.
Product Suggestion
Do you need an adhesive to fix your mirror? We sell Mirror Mate by Everbuild, an adhesive recommended by Demista.
Estimated timescale to despatch underfloor heating is 1 working day, for other products it's 1-3 working days. Underfloor heating mats and cables have FREE NEXT WORKING DAY DELIVERY WHEN ORDERED BEFORE 4.30PM