Fighting Bad Odors Nothing gets a problem fixed faster than a bad odor. Just by distributing the air in the system, the ventilation will keep the underneath part of the timber dry, cool and unappealing to pests. Fiberglass filters or the super cheap pleated are best for airflow. A good subfloor ventilation system can benefit your home by preventing moisture buildup and creating molds. The reality is a two story with single HVAC unit is always going to struggle keeping the floors the same, doesn't matter how well designed and built the system/house is.ĮDIT: Also don't use highly restrictive filters. Personally I won't own a 2 story again that doesn't have separate HVAC units for each floor. That and keeping almost all the 1st floor vents closed leads to only a degree or two difference between 1st and 2nd floor. When running A/C it only uses the temperature from the remote sensor on the 2nd floor. The other thing that helped was a smart thermostat with remote sensor. If it leads to an early death of the unit than oh well, it's an excuse to upgrade to a variable speed unit. Closing a bunch of vents probably isn't the best for the system (single speed), but I prefer comfort. Our builder specifically recommends closing/balancing registers to keep the floors more evenly cooled. People will say don't do this, it can lead to issues (like evap coil freezing). It has completely solved the problem, we no longer have to close any vents or set up floor fans at all, and there's no noticeable difference between the floor temperatures.Ĭlose 1st floor vents. Even just leaving it on a low setting (like we did all winter) works wonders. It constantly blows air down from the 2nd storey to the ground floor. Have this fan running all day.īy far the biggest improvement was when we eventually got a ceiling fan installed in our open entryway that circulates the air extremely well, and we leave it running 24/7/365. this plus the condensor and wiring are sometimes unsightly if not downright ugly, especially if the lines are run along the house versus up/over the roof. We have a small landing with a balcony, and we set a tower fan there to blow air down. On the ground: You need to make way for the lines to get up /to/ the roof to reach the rooms this is generally done by runnning the lines up the wall and encasing in a chase (or box). You want to move as much air from the upstairs to the main floor as possible. I also closed vents in tiny rooms like the bathroom (but leave the bathroom door open when it's not in use). If there were two vents in a room I would close one. This will direct even more air to the upstairs, and that cool air will eventually make its way down. You can also close some (not all) of the ground-floor vents. In an unfinished basement like ours they're probably in the ceiling. The top floor was much warmer than the lower.įirst, close all the vents in the basement if you can. We had this problem in our current house when we first moved in.
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