之前的研究表明，分层通风系统（UFAD和DV）适用于建筑物需要全年冷却的地区；然而，在加拿大，使用这种方法的建筑越来越多，那里的建筑在冬季需要供暖。本文介绍了在一所配备置换通风和辐射供暖系统的学校进行的两项实地研究的结果。结果表明，测得的污染物去除效率优于之前研究中对加热条件的预测。此外，热舒适性的关键预测值通常也在ASHRAE标准设定的范围内。引用:ASHRAE会议论文，蒙特利尔，QC

Previous research has shown that stratified ventilation systems (UFAD and DV) work well for regions where buildings require year-round cooling; however there are a growing number of buildings using this approach in Canada, where buildings require heating during winter months. This paper presents results from two field studies conducted in a school equipped with a combination of displacement ventilation and radiant heating system. The results show that the measured contaminant removal effectiveness is better than that predicted in previous studies for heating conditions. In addition, key predictors of thermal comfort are also generally within limits set by ASHRAE standards.