How to Select the Best Whole House Ventilation Systems

Whether you live in a new home or an old one, proper ventilation is critical to a comfortable environment. Proper ventilation helps maintain the air quality in the home and helps remove moisture. A dry home is warmer and healthier. With new homes becoming increasingly airtight, a ventilation system is more important than ever. Here are some types of ventilation systems you may want to consider:

Good airflow

Direct dry air ventilation systems (DVs) work by creating a stable, vertically stratified temperature field. This gradient of temperature in space increases linearly with space height and remains nearly constant in horizontal directions. The temperature of a room can be affected by a variety of factors, including the amount of equipment present, the location of people, and other factors. Even a small temperature difference between the ceiling and the air in the room can lead to noticeable downdrafts and updrafts.

The most effective ventilation system should have good airflow and be designed with good air distribution. This will reduce noise and drafts, and will help keep temperatures in the room at a comfortable level. In addition, the ventilation rate should be matched to the cooling load density. This is especially important in high heat gain areas. For such spaces, the DV can be supplemented with localized cooling terminals. Moreover, the DV should be designed to eliminate emissions from the equipment. It should also remove downdrafts caused by cold surfaces.


Direct dry air ventilation systems (DCVs) reduce indoor air pollution by reducing the amount of indoor air that needs to be exchanged. They are often equipped with CO2 sensors to regulate the ventilation system. In addition, they can be complemented by other air pollution sensors, such as those that respond to volatile organic compounds (VOCs) and particulate matter. DCV systems also minimize the heating and cooling load inside the building by reducing the amount of outdoor air that has to be exchanged.

In addition to eliminating excess moisture in a building, these systems also decrease the risk of structural damage. They also reduce energy costs. A typical HVAC system has multiple controls and settings. Demand-controlled ventilation, while also effective in reducing humidity, is not discussed in this article.


Direct dry-air ventilation systems can be very expensive. Prices vary based on technology and the size of the home. The more sophisticated types can cost as much as $2,400 for a three-bedroom home. These systems use a CO2 sensor that adjusts the amount of air in the room based on the number of people present. Typically, the more people in the room, the higher the CO2 levels will be. As a result, the ventilation system will automatically kick on when the air quality changes.

Most new homes are built with energy efficiency in mind, but older homes often lack fresh air circulation. As a result, a lack of airflow can lead to various health problems. Poor air circulation has also been linked to some types of cancer and viral infections. It is also detrimental to the value of a home.


When selecting the right ventilation system for your home, there are many factors to consider. These factors include your project goals, codes and standards, and indoor air quality. In addition, you should consider the issues of depressurization and energy implications. There are several types of whole-house ventilation systems. Each type focuses on a specific room or home or a combination of both. Below, we will discuss some of the important factors to consider in selecting a ventilation system for your home.

Indoor air quality is an issue in many modern, energy-efficient homes. Poor ventilation increases indoor humidity and can worsen allergies and asthma symptoms. The installation of direct dry-air ventilation systems can help improve your home’s air quality by increasing the amount of fresh air.