The explanation looks pretty tight and well documented to me.
The next step for him, to go further than what Ponds and Fleishman could, is to sell — or provide the setup so others can reproduce the heat differential and H4 generation effects.
Many other labs would be willing to take something, plug it in, and confirm the observation.
In the heyday of cold fusion, even though it was nearly impossible to reproduce, people were filing patents like crazy, even those who were most skeptical of the outcome.
Do you have a wild guess what his equipenat costs? $10,000??