Hands-On: Two Quick Diagnostics

Two short office call-outs: a building burning £50,000 a year out of hours, and an air-handling unit heating and cooling the same air. Calculate, diagnose and prescribe the fix.

12 min read · Jacob Willis, Net Zero Lead · Last reviewed July 2026

Time to put the last two lessons to work on two short, concrete call-outs: the same investigate → calculate → diagnose → prescribe → verify loop as every other deep-dive capstone on this platform, just two cases instead of eight, sized for a quick check of what you've just learned rather than a full assessment.