Frequent door opening is one of the most overlooked causes of energy loss in commercial buildings. When an entrance opens, increased air exchange between indoors and outdoors adds to HVAC loads and operating costs. Air curtains help limit this unwanted air exchange. However, the actual performance is impacted by many factors. This article explains how

Air curtains and strip curtains can both help control the environment around open doorways, but they work in different ways. An air curtain creates an active air stream, while a strip curtain uses overlapping PVC strips to create a physical barrier. Choosing the wrong doorway solution may lead to unnecessary energy

Air curtains create an invisible air stream across an open doorway to reduce air exchange between two spaces. In this guide, we’ll cover the basics of how air curtains work, their main benefits, common applications, and the different types available. What Is an Air Curtain? An air curtain, also called an air door, is

The heat recovery ventilator is at risk of frosting in cold climates, which leads to reduced air supply, decreased heat recovery efficiency, and even equipment shutdown. High-quality HRVs employ anti-freezing protection measures. This article focuses on explaining the common anti-freezing methods and the factors to consider when selecting them. Why

The entrance of a commercial building is the main channel for air exchange between the indoor and outdoor environments. Frequent opening of doors can lead to the leakage of air-conditioned air, while external heat, cold air, dust, and insects can enter the building, increasing the load of the HVAC system