Ventilation and HRV/ERV

An HRV exchanges stale indoor air with fresh outdoor air while recovering heat. An ERV also manages moisture, reducing over-drying in winter and excess humidity in summer. We size, install, commission, and balance the unit across Delta, BC so rooms get measured supply and exhaust. This improves indoor air quality and comfort from bedrooms to basements.

For tight homes or renovations adding airtight windows, balanced ventilation becomes essential. Choose an HRV when heating-dominant; choose an ERV when indoor humidity swings are a concern. We assess your occupancy, envelopes, and duct paths, then recommend the right ventilation system. Our HRV/ERV installation in Delta follows TECA standards and includes commissioning with recorded airflow.

We measure supply and exhaust at each grille, adjust fan speed, dampers, and duct branches, then retest until readings match design. Apple Tree Gas & Heating Ltd. targets 0.4–0.8 inches w.c. static pressure on connected runs, protecting equipment and noise. You receive the commissioning sheet with airflow readings so performance is documented.

You get recorded airflow for supply and exhaust, notes on fan settings, balancing adjustments, and final static pressure readings, plus model and serial numbers. Where required by the city, we also provide TECA F-280 load calculation summaries for related HVAC scopes. This closeout package proves the ventilation system meets design so lenders, inspectors, and owners are aligned.

We diagnose causes like blocked grilles, imbalanced branches, leaky ductwork, or undersized equipment, then provide options: duct sealing, branch resizing, control adjustments, or HRV/ERV replacement where beneficial. Our ventilation service in Metro Vancouver includes measured testing and a clear parts-and-labour quote before work begins. The goal is reliable fresh-air delivery to every lived-in room.

An ERV transfers moisture between airstreams, helping reduce over-dry winter air and limiting sticky summer humidity. We select HRV versus ERV based on climate, house tightness, and your comfort goals. Proper HRV/ERV balancing and ductwork design also stabilize humidity by controlling airflow. Expect healthier air and fewer condensation issues with a correctly commissioned ventilation system.

Most residential HRV/ERV installations are completed within a typical one-to-two-day window once materials are ready and access is cleared. For new construction, we install at the HVAC stage after framing. We work Monday to Saturday, 8 a.m. to 6 p.m. No 24/7 service. Your quote sets schedule expectations and lead times for any special-order parts.

A free on-site assessment, a written parts-and-labour breakdown, permit fees as a line item, removal and recycling of old equipment if applicable, and our commissioning and balancing deliverables. Quote validity is three months. We accept e-transfer and cheque. For homes outside our core zone, a $100 travel fee applies and is disclosed upfront.