A modular geothermal measurement system that provides for the pumping of a heat transfer fluid. In the present invention a new method of mobile wood joinery alone is used to draw the wooden elements into place while yet allowing them a range of motion. The membranes are on a plurality of different respective planes more parallel than perpendicular with each other, and the planes are more perpendicular than parallel with the faces of the elements or transducer. The server receives a third data set that includes at least the encrypted second data set and a second identifier that can also be related to the registered user. Furthermore, the epoxy resin curing agent contains at least an epoxy resin and the epoxy resin curing agent of the present invention.