Owner`s manual

27
On important characteristic of any replacement HVAC grille or grate you may
elect to use for aesthetic reasons: many such grille have adjustable louvres to
direct the ow of air. These should be either removed or frozen in place with
liberal amounts of glue in order to avoid rattles. A lot of air will be owing
through these grilles, in both directions. Anything that can rattle, will rattle.