No, they said it can be sustained without input, read up
Not true. Why don't you click the link and read yourself?
How fuel efficient is the E-Cat?
It is very fuel efficient. One hundred grams of nickel and very little hydrogen can power a 10 kW reactor for six months. After six months, the remaining fuel can be extracted and 90% of the nickel can be recycled, reprocessed, and used again as fuel.
But.... do you believe that?