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: alpha(T.F.B) - [(alpha(nb))(tR) + (Phi(cb))(tR)](1/tR) i.e., alpha(T.F.B) = [{(alpha(npb,p).F-NB)(bE)}(tR) + {alpha(LS) . F-CB . f(U)}tR](1/tR). When applied to experimentally obtained data for stainless steel particles (d(p) = 1.5, 2.0 and 2.5 mm, epsilon(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. (c) 2007 Elsevier Ltd. All rights reserved.