LHV (Lower Heating Value) Posted on 5th December 201510th November 2023 by ThePD (The Project Definition) LHV (Lower Heating Value) refers to the the Net Heating Value (NHV). Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Engineering and tagged property. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.