# Ontario HRV and ERV Guide 2026: OBC Requirements, Maintenance and Installation Costs **URL:** \ **Category:** Ontario\ **Created:** [April 26, 2026, 7:48pm UTC](https://home.renovation.reviews/t/ontario-hrv-and-erv-guide-2026-obc-requirements-maintenance-and-installation-costs/46944 "2026-04-26T19:48:50Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![system](https://home.renovation.reviews/user_avatar/home.renovation.reviews/system/32/77_2.png) [@system](https://home.renovation.reviews/u/system)\ **Post date:** [April 26, 2026, 7:48pm UTC](https://home.renovation.reviews/t/ontario-hrv-and-erv-guide-2026-obc-requirements-maintenance-and-installation-costs/46944/1 "2026-04-26T19:48:50Z")
HRVs are mandatory in new Ontario construction and increasingly essential in renovated homes as airtightness improves. Here’s the 2026 guide. **HRV vs ERV:** - **HRV (Heat Recovery Ventilator):** Transfers heat only, dries incoming air. Correct for most Ontario applications. - **ERV (Energy Recovery Ventilator):** Transfers heat + moisture. Useful in extremely tight homes where retaining indoor humidity is a priority in heating season. Less common in Ontario. **OBC ventilation requirement:** For a typical 3BR/1,500 sq ft home: ~55-65 L/s (120-140 CFM) total ventilation. **Maintenance (most common HRV failure is neglect):** Every 3-6 months: wash filters with soap and water, clean heat exchange core, check condensate drain, inspect exterior hoods. Neglected HRVs under-perform or fault out – worse than no HRV for air quality. **GTA installation costs (2026):** | Scope | Cost | | --- | --- | | HRV unit (Lifebreath, Venmar, Fantech) | $700-$1,500 supply | | Install connected to existing forced-air | $1,500-$3,500 | | Dedicated HRV ductwork (no forced air) | $3,000-$6,000 | | Total installed | $2,200-$7,500 | Canada Greener Homes Grant: up to $1,000 for HRV/ERV. _Indoor air quality and ventilation questions at [home.renovation.reviews](https://home.renovation.reviews)_