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Firing rate vs water capacity
Does water capacity of boiler effect rate to fire? Ex: Two years ago we converted WM SGO 6 to gas. The boiler was oversized to connected load of 518, so we fired at lower rate than mfg suggest(Wayne 250A) for gun to GPH of 1.75 for oil. Suggested fire rate was 240K BTU. Fire to load was 165K. We initally fired to load, but burner short cycled, so we increased to 195K, with good results. The water capacity for boiler I believe is 14.2 gal. Assuming a firing rate of 165, did water capacity account for longer heating to bring to steam resulting in increased pressure and short cycle?