The following part of this paper reviews existing theoretical correlations to predict the behaviour of two-phase (liquid–solid) and three-phase (liquid–solid–vapour) fluidised beds as well as models describing heat transfer coefficients. Moreover, a theoretical correlation is developed to describe heat transfer during boiling in a three-phase circulating fluidised bed. The approach uses earlier work on two-phase (liquid–vapour) flow boiling, two-phase (liquid–solid) fluidised beds and three-phase (liquid–vapour–solid) circulating fluidised beds. The correlation developed is validated against experimental data obtained in Part I of the presented paper. The model's ability to predict the experimental data has been successfully demonstrated. The developed expression for heat transfer coefficients is written as follows: α T . F . B . - [ ( α nb ) t R + ( α cb ) t R ] 1 / t R i.e., α T . F . B . = [ { ( α npb , p · F NB ) b E } t R + { α LS · F CB · f ( U ) } t R ] 1 / t R . When applied to experimentally obtained data for stainless steel particles ( d p = 1.5 , 2.0 and 2.5 mm, ε p = 16 % ), the correlation is able to predict the experimental data within a 20% maximum deviation. In the above correlation, f ( U ) and b E are original to this work deduced from experimental observations.