For HVAC Systems, Efficiency Measurements Are The ‘Delta’ Difference

When measuring the performance of an HVAC system, the term 'delta' is often used to express the difference between two measurements. Let’s take a look at the family of HVAC industry “deltas” that we include in our day-to-day HVAC slang terms. Delta T, Delta P, Delta V and Delta H and let’s add Delta C.