The effect of ventilation induced by the swinging motion of a clothed cylinder in uniform wind derived from Ghaddar et al.'s periodic ventilation model is incorporated into Lotens' simple heat resistance network model to predict the mean steady periodic heat loss from the clothed cylinder. Experiments are conducted to measure the sensible heat loss from the inner cylinder for the case of a swinging inner cylinder enclosed within a clothed cylinder at different frequencies of motion and for open and closed clothing apertures at the one end of the clothed cylinder. The heat model predictions of time-averaged steady-periodic sensible heat loss agree well with the experimentally measured values at different swing frequencies between 40 and 80 rpm from experiments conducted in a controlled environmental chamber at T ∞ = 25°C and relative humidity (RH) = 50% (air velocity is less than 0.05 m/s) and in a low-speed wind tunnel (for air speed between 2 and 4 m/s). The model results showed that the rate of heat loss increased with increased ventilation frequency. Heat transfer by ventilation presented more than 50% of total heat loss from a clothed cylinder at f = 80 rpm in the absence and presence of wind. When accurate ventilation rates of clothed swinging cylinder are estimated from first principles, the simplified heat resistance model predicted the heat loss from the isothermal cylinder surface with reasonable accuracy. The model will be a convenient tool for predicting segmental walking human body heat losses.