  This paper deals with the study of collapsing plane symmetric source in the
presence of heat flux. For this purpose, we have calculated the Einstein field
equations as well as Weyl tensor components. The conditions for the conformal
flatness have been determined. The interior source has been matched smoothly
with the exterior geometry in single null coordinate. It has been found the
pressure is balanced with the out going heat flux and the continuity of the
masses in two regions has been noted. A simple new model of collapse has been
proposed which satisfies flatness condition, also we have discussed the
physical properties of the model. For our model, we have calculated the
temperature profile by using the approximation scheme.
