One trick I do with my central heating plus air conditioner program to get better air flow is closing off air vents in rooms I am not in at the moment, then for instance if it is the middle of the day plus super tepid out with my central air conditioner cranking, I will go plus close off the air vents in all the living rooms.
By doing this it makes the air flow in the residing room plus the whole front end of the apartment flow much better. Because with the other air vents closed the central heating plus air conditioner program is redirecting the air to the air vents that are open. This not only cools my home quicker on those tepid Summer afternoons, but it also makes the place cool off quicker plus in turn saves me some money on the energy use of the central heating plus air conditioner program unit. Because the Heating plus A/C program does not have to run as much when it cools off quicker. In the colder Wintertide time months of the year I more or less do the same exact thing with closing off the air vents for better air flow. But with that I can speed up the process even more by occasionally running my portable space oil furnace at the same exact time as the central heating plus air conditioner program to heat the rooms faster. Of course this saves even more energy than I do in the super tepid Summer time months of the year. These tricks for better air flow plus less central heating plus air conditioner program use can be very useful!