Minisplit temperature difference between floor and ceiling
We live outside Philadelphia and have had a very cold winter. We had a mini split uint installed in a newly expanded room and blocked the two forced air ducts from the old portion of the room. The floor temperature is vastly different than that coming out of the unit.
A few details. Home was built in 1954. Half of the room (old section) is over an inaccessible crawl space. I has a flat ceiling and a ceiling fan. It has one outside wall.
The new half of the room is over an insulated slab, well insulated 2×6 walls and a cathedral ceiling with a ceiling fan on a 24″ down rod. All walls are exposed. Total room size is 270 sq.ft. including a 3×12 foot closet.
This is a guest room but we have a desk and TV so it is used a few days a week.
The Carrier mini split is located in the new section close to the old section. More recently we have been running the unit 24 hours a day. We also have the fans running on low speed. The temperature difference at coffee table height is about 8 degrees lower than the unit. On the floor is is about 12 degrees or colder on extreme days.
The bottom floor is the floor is cold. Should we increase the fan motion or are there other suggestions for this situation.
Thanks for any advice.