When my husband and I purchased a historical home, we were very unhappy with the portable heating and cooling units.
Because the walls in the home are exceptionally narrow and constructed of plaster, installing a conventional duct system isn’t a viable option.
The former owners managed temperature control with window air conditioners and electric baseboard heaters. These heating and cooling units are noisy, unnattractive, inefficient and ineffective. In our local area, we deal with winter temperatures below zero and excessive summer heat and humidity. The house was uncomfortable just about all year round. I finally consulted a local HVAC contractor for some help. He recommended the installation of a high-velocity HVAC system. The compact size of the equipment and flexibility of the ducts allow this type of system to be retrofitted into existing homes without a huge renovation project. There’s no need to tear down walls or gut the home. The narrow ducts can be snaked between beams and joints, and the modular air handlers and coils can be installed into very compact spaces, such as the attic or even a crawl space. A high velocity HVAC system takes up about a third of the space of a conventional system. I like that the heating and cooling equipment doesn’t detract from the historical integrity of the home. There was a lot of choices for vent styles, and the vents are round, very small and blend into the decor. We chose vents from unfinished wood that could be painted to perfectly match the surroundings. They are mounted into the ceiling and provide whisper-quiet airflow.