As buildings age, so do the major central equipment within the building, making it a prime opportunity for a boiler system retrofit. Older systems typically are made up of non-condensing boilers that ...

Add Yahoo as a preferred source to see more of our stories on Google. Gas water heating equipment. A court has allowed a DE rule to eliminate non-condensing gas fired water heaters. Rules by the U.S.

Two types of boilers can be better than one—especially when trying to minimize operating costs over the course of a heating season. By combining a large mass, non-condensing boiler with a high ...