Why is it important to have an air exchanger?

Over the last few years, we have heard more and more about air exchangers. Why? What exactly do air exchangers do, and why is it important to have an air exchanger?

The Popularity of Air Exchangers

Why are air exchangers so popular? The answer is simple. Modern homes are more airtight.

New building codes require new construction to be better insulated than before. This makes sense, considering it keeps our homes warm during the winter and cool during the summer. This factor is essential in our Quebec climate.

On the other hand, this improved insulation also means that stale air remains in your home for longer. Pollutants like CO2 and humidity are trapped in your home. When humid air is trapped in your home, mould can grow.

According to construction codes, any newly built homes or homes enlarged by 50% or more (building code in French only) must be equipped with a Heat Recovery Ventilator (HRV). Here’s where the air exchanger comes into play!

The Anatomy of an Air Exchanger

Air exchangers transport fresh air into your home while expelling stale air outdoors.

There are two main types of air exchangers – Energy Recovery Ventilators (ERV) and Heat Recovery Ventilators (HRV).

The ERV transfers incoming humidity to the evacuating air during summer. It does the opposite during winter, transferring expelled humidity into the incoming air. This type of system is ideal in areas that experience high humidity outdoors and a lack of humidity indoors.

The HRV eliminates humidity with the evacuated air during winter while recycling the heat back into the incoming air. This helps to lower indoor humidity levels.

The Benefits of an Air Exchanger

Canadian building codes require a good ventilation system. What are the benefits of having one?

Indoor Air Quality. According to Canada Health, Canadians spend 90% of their time indoors. Children spend the most time indoors, preferring video games and computers over outdoor play. With the pandemic and confinement, many have had less opportunity to get out, particularly in metropolitan areas like Montreal. It’s thus crucial to have good air quality. Air exchangers help eliminate contaminants from the air, reducing the degree of related health problems.

Eliminates Humidity and Mould. With balanced humidity levels in the home, you can say goodbye to foggy windows, moisture rundown, and mould.

Equalized Air Pressure. An air exchanger allows a continuous fresh air flow in the home, avoiding negative pressure. Negative air pressure will enable drafts to enter anywhere they can. This is particularly problematic when a home has a fireplace. Air exchangers regulate the air pressure and save you many headaches.

Why is an air exchanger important?

Firstly, a ventilation system is required by law in new construction. Secondly, it is an asset for both your health and your home. Even if your home is a little older, , installing an air exchanger can be highly beneficial for you and your family.

To be sure of optimal air quality, it’s essential to keep up regular maintenance of your unit.

Contact MST if you are unsure which unit is best for your home. Our team of experts will be happy to help you evaluate your needs to ensure the perfect fit!