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It is very important that you possess an efficient ventilation system at your place as it has beneficial to you and your family. It ensures that the air inside your home is fresh and clean, hence no pollutants or allergens are found in the surrounding air. The popular options are the energy recovery ventilation systems (ERV) and the heat recovery ventilation systems (HRV). We are going to look at HRV vs ERV, which is the best option to choose from.

The HRV works in a way that it expels stagnant air in the areas with high humidity that include bathrooms and laundry rooms. It also ensures that fresh air is delivered to the rooms that tend to receive more activities such as the living spaces and the bedrooms. 

During the summer, air entering your place is cooled as opposed to during winter, where the inside air is heated. On the other hand, the ERVs tend to function in a similar way to the HRVs, but it allows your home to retain some moisture. 

In order to retain moisture at your place, during summer, it tends to pull in air from the outdoors and during winter it tends to retain some air indoors.

Between HRV and ERV, Which is the Best?

When deciding which ventilation system is appropriate for your place, you shot consider some factors of which we have further explained down below.


If your region experiences dry and long winters, the best option to choose between HRV vs ERV should be the ERV systems. This is because the ERV model systems allow some of the humid air at your place to remain. 

Your place might not be that dry, which reduced issues that include static electricity and dry skin. The ERV model systems are more suited to the regions that experience dry winter or rather regions that experience humid and hot summers. 

ERV systems tend to be the best option for such conditions as it eliminates the excess humidity at your place. It is counterproductive when you install a model system of which allows some humidity to be present at your place.

During summer, ERVs tend to decrease the humidity at your place as opposed to the HRV model systems. It also decreases the energy you consume as it needs the AC unit running than battling the HRVs moisture output. 

In case you want your place to experience less humidity present in the surrounding air, you could use your ventilation system together with a dehumidifier.

The family size

When choosing the best ventilation model system for you and your family, the home and family size is an important factor to consider. A small home filled with many people creates a lot of moisture present in the surrounding air as opposed to a large home with fewer people living there. 

More people at the house means that warm water is being used in plenty at the showers and sinks. Families that love to cook tend to generate more moisture and heat in your home’s kitchen. In case your house is filled with many people, this will mean that more carbon dioxide is released into the surrounding air.

Personal needs

In terms of HRV vs ERV, you could choose any system depending on your personal preference or needs. You should not choose the best system for your place based on the climate only. You should be able to consider your own personal needs together with your family’s needs before you choose between the HRV and the ERV system for your place. 

Before installing the system, you should ensure that you consider factors such as whether any family member has allergies or asthma, or if dry air present at your place could cause nosebleeds or skin problems to a family member. You should ensure that you always consider your needs as the first thing before choosing the best ventilation system for you and your family.

HRV VS ERV: Which Is Suitable for My Place?

Before choosing the best system for your place, it is better to know some of the differences between the HRV and ERV systems.

  • Local climate

In terms of your local climate, the moisture recovery tool for the ERV system is desirable as opposed to the HRV system, when you stay in places that experience humid, hot summers or rather dry, cold winters.

  • The duration when your place was built

The ERV systems are meant for the homes that were built until the 1980s of which tend to have dry indoor air as their construction ensures that the humidity can escape outdoors. For all airtight homes, we recommend that you use the HRV systems.

  • The heating system at your place

In case back at your place, you usually use non-drying heating models that include boilers, then it is mandatory that you use the HRV systems. In case you are using models that dry the surrounding air while heating it, we recommend that you use the ERV systems instead.

  • The home’s size

As we have already discussed above, in case many people live in a small house, this means that more humidity is present from the showers when breathing and cooking. We recommend that you use the HRV systems of which are a great option. You can use the ERV systems at your place in case you have a large house and your family is small.

Benefits of the Ventilation Systems

Down below are some of the benefits of choosing either the HRV or the ERV system for your system:

  •  It provides your home with fresh oxygen.
  •  It reduces the extra moisture generated from our daily activities that include showering and cooking.
  • It assists in eliminating the gases generated by the building materials when building newer homes.
  • It reduces allergens hence improves the health conditions at your place.
  • It ensures that your home is safe. It is not mandatory for the homeowners to leave the screen doors and windows open in order to allow fresh air inside the house as the ventilation systems present at your place will instead do it.

HRV VS ERV – Conclusion

In terms of HRV vs ERV, you are now able to choose the best ventilation system model to ensure that you together with your family are safe and comfortable. In case you are not sure which system suits you better, you can schedule a call with your trusted HVAC technician or professional to assist you in choosing the best ventilation system for your current home.

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