Solve heat transfer, flow or temperature difference for water. For glycol, enter specific gravity and specific heat from the fluid manufacturer.
The heat a hydronic loop moves depends on flow and temperature difference. If ΔT is much larger than design, flow is likely low; if it is much smaller, flow may be high or the load low. The 500 factor is for water; glycol mixtures carry less heat per gallon.
Estimates based on your inputs. Always verify against the manufacturer's data and the codes that apply where you work.
Describe the symptom and your readings. Brixon helps you work through the free, quick checks first, then the deeper tests. It can be wrong, so confirm on the equipment.
Ask Brixon, first question free