What is ECAT?

ECAT, often referring to the Energy Catalyzer, is a purported cold fusion device developed by Andrea Rossi. It claims to produce heat through a low-energy nuclear reaction (LENR) using nickel and hydrogen. However, its claims have not been independently verified by the scientific community, and there are significant doubts about its validity. It is not commonly used due to the lack of credible evidence supporting its functionality.