Whenever the proceeds of or payment under a policy of fire insurance covering property located in West Virginia heretofore or hereafter issued becomes payable, and the insurer makes payment thereof to the person or persons designated in the policy or contract or if the proceeds have been assigned and written notice of such assignment given to the insurer, to the person or persons being entitled thereto by virtue of such assignment, such payment shall fully discharge the insurer from all claims under the policy or contract. This section is declared to be applicable to all insurers, including farmers' mutual fire insurance companies.
