Purchasing a Heat Recovery Ventilator
There are several reasons you may be looking to purchase a heat recovery ventilator. You may be in the market for a new home that was constructed with a rough-in for it, but no actual unit. You may be remodeling an older home and would like to add one. Or you may just wish to add one to your current residence. Regardless of your reason, there are a some questions you should ask your salesperson or contractor before buying a heat recovery ventilator.
The first question that needs to be put before your contractor will be to determine the size unit that you need. Some states have an energy code that new homes must comply with. It is usually based on the number of bedrooms and a minimum airflow requirement per bedroom along with a total capacity that is based on the square footage of the home. The next question you will pose is regarding the available features and optional items on a heat recovery ventilator. Many units offer heat recovery but do not transfer moisture, while others do.
In colder climates, ice can build up on the module so some units come equipped with a defrost mechanism or a pre-heater to prevent this from happening. You may find that a heat recovery ventilator offers only one speed while other models have multiple speed options. Sensor controls may be available to detect pollutants and some units may utilize a high efficiency air filter
or even HEPA for the fresh air being brought to the inside. These are all very important considerations.
The last things you may wish to take a look at when comparing units, though certainly not least, are performance and maintenance. There should be certified testings and ratings provided through an independent lab. Looking at these ratings you can analyze airflow capacity and recovery efficiency of the heat exchange core in the heat recovery ventilator. Warranty coverage on parts and installation can also be compared. Be sure to check the owner's manual or ask your salesperson about maintenance. Most maintenance can be completed by the owner such as changing the air filter, unblocking hoods and screens, cleaning the heat exchange core, and emptying condensation drains. Your heat recovery ventilator should
also be checked annually by a professional to verify efficiency and proper balance.
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