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Key Points
- Point vents up in summer to help cool air spread evenly throughout the room.
- Adjusting vent direction improves comfort by aligning airflow with how air naturally moves.
- Keep vents clear of obstructions to avoid straining your HVAC system.
Lowering the thermostat is often the first go-to when the temperature in the summer starts to climb. However, your AC unit isn’t the only way beat the heat while you’re indoors.
Turns out, the position of the vents can drastically improve how it feels inside, which is why we were curious to know if it mattered which way they pointed.
We spoke to two HVAC experts for their insight on how to maximize indoor temperatures with the help of vents—here’s what they had to say about which direction your air vents should point.
Meet the Experts
- Ben Zuro is the owner of Zone Air.
- David Lewis is the owner of Mission AC and Plumbing.
- Shawn Bell is the general manager at Texas Ace Service—Heating & Air.
Which Way Should Your AC Vents Point?
You may not have given much thought to the way your AC vents are pointing, but it can actually make a huge difference when it comes to the comfort level.
“For a central air system, point your supply vents up towards the ceiling during the summer. Since cool air naturally sinks, it spreads more evenly throughout the room rather than collecting near the floor,” says David Lewis, owner of Mission AC and Plumbing. “When winter rolls around, angle the vents down to help warm air reach the areas where people spend the most time.”
If you have a different system type, a window unit or mini split, HVAC professional Ben Zuro says the vents still should be pointed upward significantly.
“For window AC in particular I would suggest a significant upward angle. Window units are lower to the ground and suffer from this issue more than mini splits and modern central,” he says.
Though mini splits often have a lot of different options (often including an active rotation), Zuro still recommends angling the vents up.
Is It Better for Vents to Rotate?
When we asked our pros if it’s better for vents to rotate when it comes to cooling, we learned that sometimes it makes sense for them to rotate and sometimes for them to stay still.
Shawn Bell, the general manager of Texas Ace Service—Heating & Air, says that sometimes rotating vents can improve cooling in rooms where heat pools in corners or behind objects.
“Sweeping air back and forth across the room on a mini-split prevents it from overcooling one area of the room,” he says.
On the other hand, Lewis says that once you’ve adjusted your vents for the season, there’s really no need to keep moving them around.
“It won’t make your system any more efficient,” he says. “A better habit is to keep your vents clear of furniture and avoid closing vents in unused rooms, since that can actually put extra strain on your HVAC system.”
So if your room has a problem with air cooling one area, it may be worth it to have your vents rotate. Otherwise, keeping them still should do a good job of cooling the room.
6 More Tips for Cooling Your Home in Summer
- Keep blinds or curtains closed during the hottest part of the day to block out heat.
- Clean your air filters routinely.
- Use ceiling fans spinning counterclockwise to help you feel cooler by circulating air.
- Leave room doors open between rooms that share temperature controls.
- Check and update window seals to keep the cold air in.
- Clean your outdoor AC unit’s coils.
Read the original article on The Spruce
