以前试图分离热质量对热负荷和冷负荷的影响，并概括这些影响的尝试为这个问题提供了一些见解。它们还表明了问题的复杂性。其中一项最全面的研究是S.F.Leslie的研究，他研究了澳大利亚气候条件下带有地面平板的单户住宅类型建筑。该模型包括隔热回路中的隔墙和家具。Leslie在分析中使用了计算机代码SUSTEP，并发现（a）与加热状态强耦合，（b）通过加热控制类型（无论是间歇式还是连续式）对墙体保温的最佳位置产生逆转效应，以及（c）楼板和地面的热质量的强烈效应，尤其是地面效应。 坎塔尼和古德温使用计算机代码NBSLD研究了单户和多户住宅结构的热质量效应。他们的模型代表了没有分隔内部分区的单块加载空间。然而，家具和隔墙的等效质量包括在内，但不作为热辐射的参与面。这项工作的目的是将部分分析扩展到使用NBSLD计算机代码的独立公寓的研究。这包括底层公寓的楼板和底土、顶层公寓的屋顶/天花板以及所有公寓的隔墙的影响。Rudoy和Dougall观察到，隔墙对单户住宅的热负荷有显著影响。 此外，如果热质量的影响与预期的方向有关，则块载荷往往会掩盖这种影响。通过研究单个公寓，我们可以观察到方向对其他参数的影响。引用:俄亥俄州辛辛那提市ASHRAE学报第87卷第2部分

Previous attempts to isolate the effects of thermal mass on heating and cooling loads and to generalize these effects provide some insight to the problem. They also indicate the complexity of the problem. One of the most comprehensive studies is that by S.F. Leslie who studied single family residential type buildings with a slab floor-on-grade for weather regimes in Australia. That model included partitions and furnishings in the thermal circuit. Leslie used a computer code, SUSTEP, in the analysis and found (a) strong coupling with the heating regime, (b) reversal of effects for the best location of wall insulation with type of heating control, whether intermittent or continuous and (c) the strong effect of the thermal mass of a floor slab and ground and especially the ground effects. Cantani and Goodwin studied both single family and multifamily residential structures for the effects of thermal mass using the computer code, NBSLD. Their models represented block loading single spaces with no separating interior partitions. The equivalent mass of the furnishings and partitions was, however, included but not as a participating surface for thermal radiation.The intent of this work is to extend some of the analysis to the study of separate apartments using the NBSLD computer code. This includes the effects of the floor slabs and the subsoil in ground floor apartments, roof/ceiling in top floor apartments and the partitions in all apartments. Rudoy and Dougall observed that partitions can have a significant effect on the heating loads in single family residences. Also, if the effects of thermal mass are orientation dependent as expected then block loads tend to mask this effect. By studying individual apartments one is able to observe the impact of orientation on other parameters.