Abstract: A flexible heat transfer pad includes a metallic thermally conducting disc covering the burner element. An annular retaining ring is provided to retain and center the disc on the burner element. The retaining ring includes a downwardly depending skirt to substantially close the stove opening. Inner downwardly depending tabs are provided to contact the stovetop reflector pan, thereby securely retaining the pad in place. An annular expansion joint is provided in the annular ring to accommodate thermal expansion/contraction of the disc. One or more circular grooves are provided on both the upper and lower surfaces of the disc to enhance the flexibility and resist any tendency to buckle due to thermal stresses.