Modern homes are marvels of energy efficiency, thanks to airtight construction that minimizes heat loss. However, this same “air tightness” can trap air pollutants, moisture, and carbon dioxide, leading to poor indoor air quality (IAQ). That’s why Heat Recovery Ventilators (HRVs) and Energy Recovery Ventilators (ERVs) are essential for new homes. These systems balance energy efficiency with fresh, healthy air, making them a must-have for modern living.
Why New Homes Are So Airtight
Building codes now prioritize energy efficiency, resulting in homes that are:
- Well-sealed: Designed to prevent air leakage through walls, windows, and doors.
- Better insulated: Equipped with materials that trap heat during winter and keep homes cool in summer.
While these advancements reduce heating and cooling costs, they also restrict natural ventilation. Without proper airflow, contaminants like dust, VOCs (volatile organic compounds), and moisture can accumulate, causing health problems and structural damage.
How HRVs and ERVs Maintain IAQ
Heat recovery ventilators (HRVs) and energy recovery ventilators (ERVs) are mechanical ventilation systems that improve indoor air quality while preserving thermal energy in the home. They are similar, but ERVs have the added function of maintaining humidity levels.
To summarize:
What HRVs Do
- HRVs exchange stale indoor air with fresh outdoor air.
- They recover heat from outgoing air and transfer it to incoming air, reducing energy waste.
- Ideal for cold climates, HRVs prevent unnecessary heat loss during winter months.
What ERVs Do
- Like HRVs, ERVs exchange indoor and outdoor air but also manage humidity.
- They transfer moisture from incoming or outgoing air, keeping humidity levels balanced.
- ERVs are especially useful in humid climates where excess moisture can lead to mould growth.
In short, they allow you to get fresh air without losing warm air in the winter or cold air in the summer. Opening a window is the obvious alternative, but as you can see, it will cost you more in energy usage and often isn’t viable in extreme temperatures.
Why New Homes Need HRVs or ERVs
In airtight homes, HRVs and ERVs are critical for maintaining a healthy and comfortable indoor environment:
1. Improved Ventilation
These systems ensure a constant supply of fresh air, removing pollutants and stale air.
2. Controlled Humidity
Without proper ventilation, moisture from cooking, showering, and breathing can build up. This leads to condensation, mould, and damage to walls or ceilings. ERVs help maintain optimal humidity levels.
3. Energy Efficiency
HRVs and ERVs recycle heat and reduce the energy load on your HVAC system, making them a cost-effective solution for fresh air.
4. Health Benefits
By removing allergens, dust, and CO2, these systems reduce respiratory issues and improve the overall well-being of your family.
HRV vs. ERV: Which Is Right for Your Home?
- HRV: Best for homes in cold climates where heat retention is key.
- ERV: Better for humid regions or homes prone to high moisture levels.
Both systems work seamlessly with modern HVAC systems, making them easy to integrate into your new home.
Breathe Easier with B&B ClimateCare
Don’t let your airtight home compromise your family’s health. B&B ClimateCare specializes in HRV and ERV installation to keep your air fresh and clean. Contact us today to learn more about improving your home’s indoor air quality with energy-efficient solutions.
