--- title: Patterson-Kelley Solutions Blog | Delta-P and Delta-T description: Delta-P and Delta-T | Patterson-Kelley Blog - insights, opinions and news relating to the world of hot water heating solutions --- [![](https://info.pattersonkelley.com/hs-fs/hubfs/SPX%20-%20PK%20Logo%20Long.png?width=2124&height=225&name=SPX%20-%20PK%20Logo%20Long.png)](http://www.pattersonkelley.com) - [Solutions Blog](https://info.harscopk.com/blog) # Patterson-Kelley Solutions Blog ## [Analyzing the Difference Between Delta-P & Delta-T](https://info.pattersonkelley.com/blog/analyzing-the-delta-p-delta-t-in-hvac-systems) \[fa icon="calendar'\] Aug 3, 2022, 11:00:00 AM / by [Patterson-Kelley](https://info.pattersonkelley.com/blog/author/patterson-kelley) posted in [Delta-P and Delta-T](https://info.pattersonkelley.com/blog/topic/delta-p-and-delta-t) [\[fa icon="comment"\] 0 Comments](https://info.pattersonkelley.com/blog/analyzing-the-delta-p-delta-t-in-hvac-systems#comments-listing) Delta P & Delta-T in HVAC Systems The concepts we hear revolving around the best practices in the HVAC industry all have their place in conversation when it comes to proper sizing, building management, heat-exchanger materials, piping systems, venting, and everything in-between. In our blog series at Patterson-Kelley we attempt to demystify much of the jargon surrounding the industry and hope that it helps everyone understand the foundation of HVAC systems. In this blog, we are going to look at one word that we have all heard and used before; Delta. 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