High-velocity AC for century-old duplex

My parents lived in this coastal resort town for decades as they raised me and my sisters. We have fond memories of living in this old house that was once a duplex, and we thought it was so cool since it had a kitchen upstairs and downstairs. We lived about two miles from the beach itself too, so we got a nice breeze from the ocean that provided some circulation on the hotter days. Well, eventually we all grew up and moved out, but my parents stuck around in that house. Over the recent years, I’ve heard my mom and dad complain about how it’s getting hotter every year, and that the window units on the house just aren’t cutting it for keeping it cool. I decided I’d do some research for them, and that’s when I learned about high-velocity AC systems. Specifically intended for older, larger homes that don’t have space for traditional ductwork, high-velocity AC uses smaller ducts that are much easier to install and connect to a central unit. As well, the air handler, which drives the cooling process. The air handler for a high-velocity system is much smaller, enough so that it can fit in a crawlspace or even a closet. My parents are adamant about not changing anything about the house, so the non-invasive approach to cooling their home was greatly appreciated! They called a local HVAC company to set an appointment for consultations, and last I heard, they had the high-velocity system installed in the Spring. I’m due to go visit my parents this Summer and stay for a few days, so that will have to be the day to test their new cooling system and see if it will stop their bickering for a while.

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