AbstractExperimental results are presented for saturated nucleate and film pool boiling heat transfer to ethane, ethylene, and three binary ethane‐ethylene mixtures containing approximately 25, 50, and 75 mole % ethylene. Data were obtained at reduced pressures from 0.05 to 0.75. The nucleate boiling data are compared with several predictions; the film boiling data are favorably compared with the Sciance, Colver, and Sliepcevich correlation.