HEAT3D  uses an innovative development of a quantitative internal infra-red thermography method, combining two new and inexpensive technologies to provide a low cost handheld instrument offering a quick and highly visual 3D measurement of the heat flux value through a building surface in watts, along with its U value. HEAT3D doesn’t just measure the IR temperatures, it measures the actual heat flow in watts flowing through each part of the surface. These measurements can then be used to provide accurate input for before and after measurement and comparison of U values during refurbishment of existing buildings to improve insulation, and to check a new building’s performance meets predicted/designed U value expectations, provides the expected return on investment  and meets future domestic EPCs (Energy Performance Certificate) requirements.

The research and development behind HEAT3D was part funded by Innovate UK