What needs to be clarified
The task could be to establish whether the difference is persistent and which information distinguishes operating conditions from a possible installation or equipment defect. First, identify the section and period actually covered by the measurements supplied.
Materials to prepare
- A heating diagram identifying risers, emitters, control elements and sections where work was performed.
- Work and commissioning records, available adjustment and maintenance records, and dated system changes.
- Observations at the same points: time, outdoor conditions, system operating mode and measurement method.
What to compare
- Whether the system state and observation conditions are comparable across the sections being assessed.
- Whether readings can be traced before the work, afterwards and following later adjustment.
- Whether the inspection statement concerns the section examined and the measurements reported, rather than automatically the entire system.
Possible outcome of the analysis
A possible output is a diagram of inspected sections, a comparison of operating conditions and a list of supported discrepancies. Further measurements or documents needed to examine each remaining explanation could be identified separately.
Limits of the conclusions
Surface temperature in a single photograph cannot establish flow rate or the cause of a difference. Opening components, adjustment and testing require a separately agreed procedure and an appropriately qualified contractor.