2nd Floor Hvac Air Flows

Divide the house into two zones one for each floor.

2nd floor hvac air flows. The hvac contractor checked to see if the furnace blower speed was on high in cool mode and it is. 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. How to increase air conditioning or heating return air flow to improve system performance return air adequacy on heating and air conditioning duct systems. How is hvac air flow rate air velocity or cfm cubic feet per.

One way to balance out the air flow to all the rooms in your house is to close the vents in the cooler rooms partway. There is an 8 x16 vertical trunk that runs up next to the furnace to supply the second floor. What is the recommended air flow rate for air conditioning systems. Misshapen flex duct to transport the air throughout your home your hvac system uses ducts of various shapes sizes and configurations.

When only the second floor is calling for air there is hardly any airflow in the first floor and the second floor damper does open when it calls for air. You might also want to try adding a ceiling fan in. Air duct return air and air flow improvement. Make the second floor return vent duct bigger.

Hvac systems are balanced by having an air return in each area of the house with the capacity to return the total flow of air generated by the vents in that area of the house. 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. Use a floor fan or ceiling fan to improve or direct cold air flow upstairs. When one area of the house isn t getting enough airflow sometimes it s because there was no air return provided in that section of the house and adding one can help.

It is a downflow furnace to a trunk in the basement that supplies the first floor. Open doors on the second floor so air is more evenly distributed when using a central ac system close doors that lead to rooms where cooling isn t a priority when using a supplemental ac unit upgrade your thermostat to a programmable or smart wifi version. Of course this means that your second floor has not yet sufficiently cooled. The rooms closest to the unit will receive the strongest and coldest air flow while those farthest away will unfortunately get the weakest air flow.

It has a common return on the first floor. For 1 the furnace fan running all day with the a c on might solve some milder heat trap problems for your second floor. Add a small return vent duct to each room on the second floor. On the bright side you should see much better air flow throughout the house and hopefully fix where you have no air coming out of vents in one room or multiple rooms.

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. How to check or detect air flow at the return register inlets. Hot air rises so the second floor is naturally going to be warmer.