What needs to be clarified
Review room heat loads and conversion of catalogue output to design conditions, assessing enclosures, ventilation and temperatures.
Materials to prepare
- Plans, external construction and window dimensions
- Sizing calculation with temperatures and ventilation
- Radiator data and design supply/return temperatures
What to compare
Reconstruct wall, window and other enclosure losses separately; check areas, units and temperature differences. Review ventilation and adjacent-room assumptions. Compare required loads with radiator output at design conditions; express unknown construction properties as ranges rather than arbitrary single values.
Possible outcome of the analysis
A room-by-room table may identify sensitive assumptions, missing design inputs and recalculation options, without promising that radiator replacement will resolve discomfort.
Limits of the conclusions
Area factors are not universally suitable. Heat-loss review confirms neither hydraulic balance, actual water flow nor installed control operation.