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Correct pressures to run boiler at?
I picked up a 3psi gauge and dialed my presuretrol to cut out at 1.5 pounds and cut in at .5 pounds. But I wonder if I can tweak the pressures to be more efficient. How do I calculate the exact pressures I should be running at?
I can measure my mains and the length of pipe plus elbows. Which one governs? The longest one? Then, what pressures would be correct?
Thanks in advance...