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Someone gave me a break on rise aquastat for activating the dump zone. The problem, I think, is it has a 2* fixed differential. Will it work or am I going to have trouble with this? This boiler isn't a gasifier if that matters.
It should be good as a dump zone I don't think you want a large dif. I think you want to have a ceiling that it will not go over. Just be aware that dependant on how much heat you can lose in the zone it may continue to rise for a time.