National Heat Exchange Cleaning Corporation was founded in 1995 to market our patented shell side cleaning system. The Enclos ... ed Mobile Bundle Cleaner, or EMBC, is a state-of-the-art system. Circulating cleaner through a closed kidney loop and utilizing high pressure spray bars, the EMBC restores heat exchangers to 98% efficiency. Over the years, we have continually expanded our range of services to include re-tubing and re-manufacturing, ceramic cladding, tube ID cleaning and high-pressure lancing. read more