Heat Diffuser Plates

What Are Heat Diffuser Plates and Why Do You Need Them?

Heat diffuser plates are an essential component in water-based underfloor heating systems, helping to evenly distribute heat from pipes to the floor surface. Made from high-grade aluminium, these plates act as conductors, Improving Heat Output & Faster Warm-Up Times and quickly spreading warmth across the entire area: ensuring uniform temperature control and increased energy efficiency. By preventing hot and cold spots, they contribute to a more comfortable living environment while reducing your overall heating costs.

Whether you’re installing underfloor heating between traditional timber joists or using insulation boards, our diffuser plates provide a simple and effective solution. Most of our designs feature pre-formed channels to hold 16mm pipe at standard 150mm centres — ideal for domestic and commercial setups alike. These aluminium plates are lightweight, corrosion-resistant, and easy to fit, making them a popular choice for installers and DIYers alike.