Throughout the hot St. Louis summer months, the upstairs of a two-story home is often much warmer than the downstairs level, even when the air conditioning system is operating. This is a common problem for homeowners with forced-air HVAC systems with one thermostat located on the first floor of their home. To know why the system isn’t keeping upstairs as cool as the downstairs, it helps to understand how a forced-air system works. Then you can apply a few strategies that will help distribute the cool air more evenly throughout your St. Louis and St. Charles area homes. ...










