The experimental details of calorimetric experiments that provide support for the transmission resonance model (TRM) to explain cold fusion are presented. For the first time, a theoretical model provides a good fit to calorimetric data and permits an understanding of that data. After the first experiment in which excess power was achieved, the model was employed to guide further experiments. Not only does the TRM suggest which experimental parameters to hold fixed and which to vary, it also predicts significant nonlinear structure and guides the search for that structure. The following are described: calorimeter and cell designs, electrode preparation, electrode charging, and excess power measurements.