When performing a similar analysis, consider the following hints and recommendations:
Select sufficiently large sizes for the solid base elements to avoid an over-refined base mesh.
If the base elements are smaller than the cross-section or thickness of the embedded components, the heat-generation loads may not be adequately distributed, causing over-estimation of thermal results in the affected regions.
Use proper section-control settings (SECCONTROL) for the reinforcing elements to improve results.
Consider using the base-removal option for all supported base materials and using the full membrane option for homogeneous embedded members.