An attempt was made to replicate electrochemical and gas-load cold fusion neutron counts. The best results for electrolysis were counts of 2.5 times background for 45 min. The cold fusion rate was found to be <2.09 × 10−22 fusion/(d-d)·s−1. For the gas-load method, an effect was seen twice, with neutron counts on the order of 3 to 4 times background over 1.5 h. The search for excess tritium in the heavy water from the electrolytic cells proved negative. However, mass spectroscopy of the D2 gas before and after the gas-load experiments indicated a change in the mass 3 to mass 2 ratio from 0.53 to 1.66.