There are TWO problems with your probative analysis.
First, the HUP is (when ignoring the delta-p delta-x form)
delta E * delta t ~ h/(2*pi)
That is, they are uncertainties of the value and not absolute value.
Please note that you switch the two in your 1st through 3rd equations.
Second, in cold fusion there are substantial fugacities
attained using locally large electric field intensities
and the impact of the loaded lattice
which your equations 4 (and others) ignore.
On the other hand, the negativists have
much company in being unable to perceive humanities' creativity.
"There is no reason anyone would want a computer in their home."
[Ken Olson, Chairman and founder Digital Equipment Corp., 1977]
"640K ought to be enough for anybody."
[Bill Gates, 1981]