HRV System Explained: User Guide & Maintenance Tips
These HRV maintenance guidelines help you keep your system efficient, quiet, and compliant. Regular care improves air quality, prevents condensation, and ensures long‑term performance in airtight Irish homes.
Don’t Turn the HRV Off
HRV systems run continuously. Turning them off causes humidity and pollutants to build up, especially in colder months. Keep your HRV running and use the boost function while cooking or showering. Remember, maintaining the HRV system is key to preventing these problems.
What happens if you turn it off?
- Window condensation returns
- Corners may develop mould
- Air feels stale and stuffy
Filters: Check and Replace
Filters are the heart of proper heat recovery ventilation maintenance. Check every 3–6 months and replace or clean every 6–12 months, depending on the environment and manufacturer guidance. Regular attention to filters is one of the main HRV maintenance tips.
Signs your filters need attention
- Reduced airflow or louder operation
- Dust visible around supply valves
- Increased allergy or respiratory irritation
Don’t Block Air Vents
Balanced airflow is key to good HRV maintenance. Avoid covering supply valves with curtains or furniture and keep extract vents clear in kitchens, bathrooms, and utilities.
Door undercuts and airflow transfer
To meet Part F requirements, internal doors should have a 10 mm undercut below the finished floor. If gaps are smaller, trim doors or keep them slightly open to allow air movement between rooms. Such adjustments are practical HRV maintenance tips for efficient airflow.
Smart Controls: Boost, Timers, and Humidity Sensors
Use boost modes during showers and cooking. Humidity sensors and timers keep your HRV working efficiently without constant adjustments. These smart features are integral to any list of HRV maintenance tips.
Summer bypass: use it wisely
- Turn the bypass ON in summer to reduce overheating
- Keep it OFF in winter to recover heat efficiently
Don’t Adjust Air Valves Yourself
Air valves were balanced during commissioning. Adjusting them disrupts airflow and can cause noise or poor ventilation. Contact a certified technician for re‑balancing if needed. This recommendation is crucial in your HRV maintenance tips.
Annual Service Checklist
For proper HRV maintenance Ireland homeowners should ensure:
- Filters, fans, and the heat exchanger are inspected
- Airflow is balanced and re‑commissioned if required
- Ducts and valves are cleaned when necessary
- System controls and performance are reviewed
Summary & CTA
By following these HRV maintenance practices, you’ll keep indoor air clean, humidity low, and energy bills down. Need help with filter replacement or professional servicing?
Key Takeaways
- HRV maintenance ensures efficiency and air quality; keep systems running continuously to prevent humidity build-up.
- Check and replace filters every 3–12 months; look for reduced airflow or visible dust as signs of needed attention.
- Avoid blocking air vents and maintain airflow to comply with Part F requirements; ensure a 10 mm undercut on internal doors.
- Utilise smart controls, boost modes, and summer bypass wisely for efficient operation; consult a technician for air valve adjustments.
- Follow an annual service checklist to inspect filters, fans, ducts, and airflow for proper HRV maintenance in Ireland.
