This John Guest Speedfit Polystyrene Insulation Board is an ideal addition to any hot water underfloor heating system. The board has a length of 1.2m, a width of 0.35m and comes in a pack of 10. It is made of polyethylene material and has an energy efficiency rating of A+++.

The board is designed for easy installation and comes with floor boards. It is suitable for any heating system and has a hydronic (hot water) power source. The manufacturer offers a 1-year warranty for this product. This item is perfect for anyone looking to insulate their home and improve its energy efficiency.