Two simple questions to help you choose the ideal unit for your home or building.
1. In what climate zone do you live?
Climate conditions will determine whether you need a Heat Recovery Ventilator or an Energy Recovery Ventilator. HRVs are usually recommended for colder climates with longer heating seasons. ERVs are used for warmer more humid climates with long cooling seasons. In regions where temperatures can fall below 23°F (-5°C) for several hours, it is recommended that a unit with defrost capability be installed. Units with suffix “N” on model number do not have defrost capability.
2. What size is your house?
If you know the total square footage of your home you can easily choose the ideal Heat Recovery or Energy Recovery Ventilator. If you don’t know the square footage of your home, then an alternate way to select the unit is by room count. (Use chart below to calculate total ventilation required.)
Always consult your local building codes for sizing requirements.