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Community and Q&A

Where to put the fresh air vents from a HRV with dedicated ducting?

Joerg Zender | Posted in Mechanicals on

I’m about to install a HRV/ERV into a new construction in the Seattle area and was wondering where to put the fresh air vents inside the rooms.

Do they go in the floor / low on the wall or ceiling / high on the wall?

The manufacturer UltimateAir recommends putting them low, but I’ve read a lot of recommendations to put them high on the wall. The fresh air ducting will also include a water to air coil that will add some cooling in the summer.

Wouldn’t it make more sense to put them high as the incoming air would usually be cooler than the room temperature?

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  1. GBA Editor
    Martin Holladay | | #1

    Here in Vermont, fresh air grilles for a ducted HRV are usually located high on a wall. That way the grille will not be blocked by furniture.

    However, it's also possible to install these grilles low, as long as you are sure that the grilles won't be blocked.

    For more information, see this article: Installing a Heat-Recovery Ventilator.

  2. Joerg Zender | | #2

    Martin, thanks for your insight and pointing me to the article. It contains helpful information that will make it easier for me to finish the project successfully.

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