What is an ERV?
ERV (Energy Recovery Ventilation) systems work by replacing stale indoor air with fresh air from outside, all while recovering energy through a heat exchanger. They transfer heat and moisture between the air streams, which helps to precondition the incoming air. This process reduces energy loss in airtight homes that comply with building codes for energy efficiency or passive design, particularly in extreme climates.
Benefits
Energy Recovery Ventilators (ERVs) play a vital role in airtight homes where natural airflow is restricted. They help eliminate pollutants by filtering out contaminants and allergens, which is especially beneficial for those with allergies, alleviating symptoms such as fatigue. ERVs can reclaim as much as 90% of heat and moisture, leading to substantial savings on energy costs in colder regions when compared to standard ventilation systems. Additionally, they regulate humidity levels, dehumidifying during the summer and adding moisture in the winter, ensuring a comfortable environment while also minimizing mold growth and reducing carbon footprints, thus promoting both health and environmental sustainability.
New Homes
In new construction, ERVs integrate seamlessly with central HVAC or ductless systems, supporting energy-efficient designs like passive houses. Ducted units ensure whole-house ventilation, while wall-mounted models suit smaller spaces. ERVs meet ventilation codes while maintaining airtightness, ensuring long-term indoor air quality and efficiency.
Remodels
Retrofitting ERVs is practical for existing homes, especially after air sealing. ERVs pair effectively with mini-splits, which lack ventilation but excel in zoned heating/cooling. ERVs supply preconditioned air, which mini-splits distribute, reducing energy use and humidity loads.
Bonsai focuses on creating and specifying the best heating, cooling, and ventilation systems customized for homeowners. With our expertise, we effortlessly combine all these systems to improve indoor air quality and energy efficiency in both new constructions and renovated homes.
