Winter Maintenance for Heat Recovery Ventilators

Heat Recovery Ventilators (HRVs) are beneficial particularly in extremely cold winters. HRVs draw cold, fresh air from outside in the heating system, and then pre-heat it by circulating heated indoor air. They help recuperate heat that would otherwise be lost outside in the event that fresh air is allowed to circulate inside.

An HRV eases the pressure on your heating system and helps save on energy costs. The installation of an HRV will also increase the quality of your indoor air. But, an HRV needs regular maintenance in order to perform its job. Here are some tips to maintain your system to keep it running smoothly during winter.

1. Check the manual carefully. Different HRVs made by different manufacturers could come with different guidelines. Review the manual carefully and understand the requirements for maintenance for your HRV.

2. Examine the screens. Clear away debris and clean the intake and exhaust hoods, as well as the screens. Screens with particles could hinder ventilation by limiting intake or exhaust.

3. Adjust the motor packages. If you want to check the functioning the HRV has:

• Assist in aligning pulleys and securing the shafts
• Verify wear and tear on your belt (replace every now and then)
• Get rid of dirt and dust from the blower's wheels and vents.
• Adjust the tension of the belt and ensure that motor mounts are secured

4. Replace the filters. In general, filters for an HRV must be replaced each quarter (or every two years during operation). The frequency of replacement could be contingent on the quantity of dust in the airstream, as well as the kind of filter. Make sure to schedule the replacement of the filter to ensure your unit's operation and use only the proper size to ensure the proper operation of your HRV.

5. Clean exchanger cores. The manual for the product will provide a recommendation for cleaning the exchanger's cores. The process is typically performed at least once per year. Vacuuming using an attachment for a soft brush is typically all that is required.

6. General cleaning. Vacuum or apply a damp cloth to clean dirt from the interior of the HRV.

7. Confirm the operation. Close the doors to latches and access panels. Restore the unit's power and then go through an on-off cycle to make sure that it's working correctly.

HRV maintenance can be completed by yourself; however, contacting a professional will ensure that the job is easy and quick.