Why Is My New Replacement Steam Boiler Flooding?
But, this shrinking has caused a new set of problems when we replace a much older, more inefficient, and LARGER boiler: boiler flooding. Let’s look at why this happens and how we can solve the problem. New Boilers Could Mean Less Water Capacity. An old cast iron 200,000 Btuh steam boiler may have had a 40-gallon capacity.