Cast Iron Scented Wax Warmer This charming wax warmer is reminiscent of a cast iron skillet over an open fire. Simply place a tealight underneath (not included), and the warmer heats the wax melts (sold separately) to release a delightful scent throughout your home. Cast iron. Measures 6 1/4"L x 4 1/2"W x 3 3/4"H.