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VRC/VRE FAQs

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HRV/ERV FAQs

What does HRV/ERV mean and which models do they include?

Answer

HRV stands for Heat Recovery Ventilator.
Models include Constructo, EVO5, Novofit, C Series, E Series, K Series, X Series and Solo.
ERV stands for Energy Recovery Ventilator.
Models include Constructo, C Series, E Series, K Series, S Series and X Series.

What is the difference between an HRV and an ERV?

Answer

Heat Recovery Ventilator (HRV):
The heat recovery ventilator (HRV) is the proper choice in colder climates where there is excess humidity during the heating season, since it can eliminate it.
The HRV keeps the home supplied with a steady flow of fresh outdoor air. As stale, warm air is expelled, the heat recovery core warms the incoming fresh, colder air before it is distributed throughout the home.
The result is a constant supply of fresh air, no unpleasant drafts and greater home comfort.

Energy Recovery Ventilator (ERV):
The energy recovery ventilator (ERV) is suitable for colder climates, in homes where there is no humidity excess during the heating season, as well as for warmer climates homes with high outdoor humidity.
The ERV recovers heat (like the HRV); however, it also recuperates the energy trapped in humidity, which greatly improves the overall recovery efficiency.
In conditioned homes, when it is more humid outside than inside, the ERV limits the amount of humidity coming into your home.
For homes using a humidifier, with low humidity level in winter, the ERV limits the amount of humidity expelled from your home.

Can I ventilate the bathroom with these HRV/ERV units?

Answer

You can ventilate bathrooms with an HRV or an ERV. You can even add timers such as: 20-minute timers, 20/40/60-minute timers or 60-minute mechanical timers (depending on the unit model chosen).

Can an HRV/ERV be installed in the attic?

Answer

These models have to be installed in an environment where ambient temperature is always above 10°C or 50°F.

Can I use controls other than Venmar’s with my unit?

Answer

Each unit’s control is designed to work with its own circuit board.

Is there heat recovery during summer?

Answer

No, because there is not enough difference between inside and outside temperature during summer.

Can my HRV/ERV be connected to my furnace duct(s)?

Answer

These units can be installed independently or connected to your furnace duct(s).
Depending on the installation, the furnace blower will have to run continuously or not in order to have an adequate air circulation.
For further information, please refer to the installation manual of your unit.

Does my HRV/ERV unit need to be balanced?

Answer

It is strongly recommended to balance the unit for optimum performance by a contractor specialized in heating, ventilation and/or air conditioning (HVAC). An unbalanced unit could cause problems (risk of frost in the unit and ducts).

Where can I buy HRV / ERV units?

Answer

These models are sold and installed by heating, ventilation and/or air conditioning (H.V.A.C.) contractors.
Please consult our Dealer Locator section to find an authorized service center in your region.

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