yet they do see helium commensurate with the heat.
This is extremely weak evidence. There are thousands of conceivable nuclear reactions which could produce helium. But proponents of d-d fusion never consider any alternatives to their preconceived hopes. There are major reasons for supposing that the so called heat / helium ratio as measured is exagerated. Firstly it is NOT clear that there are no other nuclear reactions taking place simultaneously. Secondly it is not clear that all the helium is detected. All we can conclude is that helium is correlated with heat but we have little hint to suppose that any deuterium is involved.
Quoteyou are correct. I had it wrong.
Thanks Jed. You have restored your credibility. A major source of misinformation is the continual confusion of conjecture with fact. If we are to escape from this error we need the humility to accept we may be wrong. Well done!