In this comparative study, physical and mechanical results of microwave hybrid heating (MHH)-based joints have been compared. Two different experimental set-ups have been used, both being an extension of the original MHH set-up. Similar joints of SAF2507 have been fabricated in both the setups without any filler material. In the first setup, slots are cut into the insulation brick, wherein the specimens to be joined are placed. While in the second set-up, insulation brick is replaced with the ceramic wool, leading to reduction in overall assembly time, set-up labour, processing time, as well as production cost. Moreover, the second setup results in joints with enhanced productivity and cleanliness. Scanning Electron Microscopy (SEM) and Energy Dispersive Spectroscopy (EDS) studies were used for characterizing the physical properties of joints. The microhardness (428 HV) and ultimate tensile strength (292.84 MPa) of the joints was found superior for the second setup-based joints as compared to microhardness (417 HV) and ultimate tensile strength (252 MPa) for the first setup-based joints.