The H150-TQG has been thoughtfully engineered for simple installation in apartments, condos, and small houses.

The removable collars are top-mounted, which makes the unit both narrow and shallow enough to fit inside standard closets and other tight spaces.

Recirculation defrost to maintain a neutral pressure in the home, and using only the four duct connections. No fifth duct connection required
https://www.aldes-na.com/wp-content/uploads/2023/11/H150-TQG-spec-151123.pdf