Cold air returns are typically located near the ceiling in a room because cold air is denser and heavier than warm air. Placing the returns near the ceiling allows the colder air to be efficiently drawn back into the heating system for re-circulation, helping to maintain a comfortable temperature in the room.
Floors in heating season, ceilings in Air Conditioning season
Only the low air returns have dampers, and they should be open in winter, so they can suck in the lower cold air (cold air sinks), and in summer the dampers should be closed, so the high air returns suck the hot air near the ceiling (hot air raises)
The cold water faucet in the kitchen is typically located on the right side of the sink.
First,I would check the houses infiltration rate and try to improve it. Second I would look at the fuel efficiency rating of the equipment and improve things there if it is an older unit. Vent placement in your case is trivial, returns belong down low where the cold air is.
heat rtises, cold sinks.
When a cold air mass moves into an area where a warm air mass is located, it is called a cold front. Cold fronts typically bring cooler temperatures, precipitation, and sometimes thunderstorms as the denser cold air displaces the warmer air.
Ceiling. Cold air fails
Condensation is always caused by a cold object or breeze coming into contact with warm moist air. I would look for infiltration of cold air near the ceiling beam and then try to seal the air leak.
Yes, Chardonnay is typically served cold.
Yes, limoncello is typically served cold.
Yes, tequila is typically served cold.
he returns occassionally