Hi, I am a newbie. I have a silly question to ask about my Williamson steam boiler. Is it normal that when thermostat calls for heat, the boiler runs abt 10min till pressure hits 5psi and it stop for a few minutes till pressure drops close to 0. And it keep repeating the same way. Is there any way to increase run time to 20min? Such as decreasing anticipating pressure or clean air vent of radiator. Please advice. Thanks a lot.
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