Excess molar enthalpies of {xCH3CH2OH + (1 - x)CH3C(CH3)2OCH3} and {x1CH3CH2OH + x2CH3C(CH3)2OCH3 + (1 - x1 - x2)C6H6}, measured with a flow microcalorimeter at the temperature 298.15 K, are reported. The experimental results have been correlated with polynomial equations and compared with those calculated from a mole-fraction association model having binary and ternary parameters.