HRV & ERV Ventilation Services in the Greater Toronto Area

An HRV primarily transfers heat between outgoing stale air and incoming fresh air. An ERV performs the same basic ventilation function but can also transfer some moisture between the air streams.

The right choice depends on the home, humidity conditions, climate, occupancy and ventilation requirements. Airrand can review the building and explain which approach makes sense.

No. An HRV recovers some heat from outgoing indoor air to temper incoming outdoor air, but it does not heat the incoming air to indoor temperature by itself.

An ERV can transfer some moisture between air streams, but it is not a dedicated humidifier or dehumidifier. Proper humidity control equipment may still be needed.

Operating strategy depends on the equipment, building and ventilation requirements. Some systems use continuous low-speed ventilation while others use scheduled or boost operation.

Drainage, condensation, freezing, blocked components or maintenance issues can contribute to water problems. The equipment, drain route and operating conditions should be checked.

Cold-weather frost can occur in the recovery core. Different manufacturers use different defrost strategies, so the equipment and installation need to be reviewed together.

Maintenance intervals depend on the equipment, environment and usage. Filters, the core, drain pan, exterior hoods and fans should be inspected periodically.

Often yes, but the best integration depends on the duct system, furnace or air handler, controls, house layout and ventilation goals.

Not universally. Ventilation design varies, and local requirements and system design determine the correct exhaust strategy for bathrooms and other rooms.

Yes. Airflow setup and balancing are part of proper ventilation work, because supply and exhaust flows need to be set appropriately for the system to operate as intended.