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Delta t ...... The obsession
Can everyone at least agree that delta t is a design constant? 10, 20, 30, any number in between .
Can everyone also agree that the very same constant used to design a heating system, or emitter becomes variable upon commissioning of said product depending on operating parameters? Say cold start, no setback , setback etc. to say a few.
So,what's all the new obsession of trying to control it, and keep it a constant no matter what?
People are acting as though this is a huge mile stone, and seemingly hydronics has been done wrong for 100 years.