10/12/2025
Congratulations to Richard Jack, who alongside Grant Henshaw and the team at Energy House Labs, the originators and all around developer/physicist powerhouses Electric Pocket, for co-authoring a journal paper on the development and validation of ππππ3π for in-situ U-value measurement.
Developing a genuinely new measurement tool and then thoroughly validating it, is a long and often painful road. Anyone whoβs tried to move from concept to credible evidence will know how hard that is. Iβm genuinely proud of what weβve achieved together.
ππ‘π² ππ¨ππ¬ ππ‘π’π¬ π¦πππππ«?
U-values underpin EPCs, retrofit decisions, and heat pump sizing, yet both lookup tables and conventional calculations have repeatedly been shown to carry typical uncertainties of 50%+. That level of uncertainty is baked into huge strategic and financial decisions across the housing sector.
π―πππ3π« πππππππ ππππβπ πππππππππ.
It enables accurate, in-situ U-value measurement in a single site visit using infrared thermography and smart processing β making real measurement viable at scale for the first time.
If we start measuring rather than assuming, the prize is enormous:
π£ A step change in our understanding of what materials and systems actually work in real buildings
π£οΈ Far better feedback loops for manufacturers and designers
π Massive improvements in delivered performance β if weβre willing to move beyond business as usual
The paper is an important milestone, but also just the beginning of making U-value measurement mainstream.
Links to the paper & Heat3D product in the comments for those interested in the technical details.
