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Posted by Bob W on October 05, 2005 at 12:53:34:
We are replacing our boiler with a new Burnham IN-8, sized correctly to the new amount of radiation. We are removing radiation so the system piping should be somewhat oversized. Our old boiler, a Weil 105EGH, used a pressuretrol. It has been suggested that we can go to a vaporstat to get better control at very low pressure. I like the idea. The system mains are well vented. My question is whether this is a good idea and if so, do we get the Honeywell vaporstat that goes from 0-15 oz. and breaks on pressure? Thanks.