Both locations have positives and negatives depending on a number of variables.
Ducted heating ceiling vs floor.
For cooling ceiling would be better.
No matter where you place the ducts fundamental facts of duct design always apply.
As a general rule ceiling mounted vents offer better cooling potential while floor vents offer superior heat delivery.
The size of ductwork must be properly calculated to accommodate the required airflow volume and duct spans should be routed.
Supply registers are the vents that deliver warm or cool air from your central heating cooling system to each room.
These principles should also be applied when locating return vents the vents that pull air from the room to supply your hvac system.
What is the difference between supply registers and return registers.
For heating vents in the floor would be better.
Heating ducts should never be an afterthought.
Heat ducts in a house are usually installed in the floor or the ceiling.
If theyre in the floor youll want your return in the ceiling.
Your climate the size of your home the number of stories and the height of your ceilings should all influence your decision to place duct openings in the floor or ceiling.
But which one is preferable.
Either type of register ceiling or floor can be used for this as long as the need for the area or room is matched.
The ideal register placement for each room depends on a variety of factors including energy efficiency ease and cost of installation appearance and of course comfort.
Ductless heating and cooling systems have become a popular alternative to window air conditioners baseboard supplemental heaters and space heaters for rooms that are not adequately served by central heat or air conditioning.
Choosing the right location can lower home heating costs.
For homes where heating is a primary concern floor collection is advisable to pull from.
As for pros and cons of either.
This isnt the main concern however.
Ceiling ducts don t hog existing or potential closet wall or ceiling space making an interesting or worse unsightly decoration and ceiling vents don t present the decorative dilemma floor vents often due forcing furniture to strange locations to prevent blockages in airflow.
If the registers are in the ceiling you will want your return low.
Because the components are split between an outdoor condenser compressor unit and one or more indoor air handlers these ductless units are sometimes called mini split.