No Cold Air Return On Second Floor

I m running 90 furnace and and old ac.

No cold air return on second floor. Different temperatures on different floors of your home can signal an issue with how your air conditioning system works. Air circulation in homes which are older and or in poorly designed newer ones equipped with a central forced air system might be compromised because they do not have an air return port installed on the second floor. The air flows across the ceiling in the hallway towards a larger cold air return that does extend to the basement furnace. You do this and i guarantee you that the second floor is going to be much more comfortable year round.

For 1 the furnace fan running all day with the a c on might solve some milder heat trap problems for your second floor. In some cases it s because the system is. I have a forced air heating and air conditioning system that performs poorly on the second floor. I live in a 1920s masonry row house that has one vent going to each of the three upstairs bedrooms and four vents on the first floor.

It doesn t matter how much you run the air conditioning system during the summer that second floor will always stay much hotter than the first. It eventually cascades down the stairwell to the first floor. Add a small return vent duct to each room on the second floor. Without this second floor return air system the heavy cool air being discharged from the supply ducts in each room can t do its job.

However when the thermostat senses that the temperature on the main floor is the temperature your hvac system has been set for it will turn off the ac. The most common complaint regarding imbalanced temps and hvac units is that it cools the first floor but not the second floor. No need to run dehumidifer for the first time in years but the 2nd floor is 2 3 degrees c hotter than the rest of the house. I ve created a quick not to scale diagram of the current setup in my home.

You might also want to try adding a ceiling fan in critical rooms like a second floor bedroom. This is one reason why your first floor is so much cooler than the second floor. Divide the house into two zones one for each floor. It often floats along in a layer near the floor.

Uneven cooling heating is not an unusual problem. Now that the summer is here i noticed the basement is great. Hot air rises so the second floor is naturally going to be warmer.