With summer nearly upon us, rising temperatures often bring discomfort along with increased electricity costs due to continuous air conditioning use.

NYC is gearing up for its first heat wave of the season, with forecasters predicting temperatures to reach a high of 100 degrees next week.

Thankfully, there is an expert-backed trick that can solve New Yorkers’ sweltering problems.

To save yourself and your wallet — an expert recommends utilizing a fan in a specific way to keep the temps inside your home nice and cool.

Generally, people aim fans directly at themselves for relief, but energy specialist Les Roberts from Bionic shared with the Daily Mail that fans are more effective when aimed out the window.

“Opening opposite windows or doors allows air to flow through,” Roberts said.

Roberts explains that when two windows are open, the fan can expel the hot air from the room, making room for cooler air to flow in through the other window.

Sounds genius.

“For even better airflow, you can place a second fan facing inward at the opposite opening to pull cooler air into the room, creating a strong cross-breeze,” he told the outlet.

To reap the effects of this tip, the expert said people should do this in the early mornings or later evenings — the coolest parts of the day.

“It’s a simple trick that could make a noticeable difference, especially at night, when outdoor temperatures drop,” he said.

This simple yet effective trick seems to be one that some people weren’t aware of, according to the comment section of a viral TikTok that demonstrated it.

“When he says if we point the fan out the open window, it will cool the room down quicker and he’s right,” text read in the video with over 2 million views.

“wait how do i do this?? can i just point a fan out the window or do i need another window open in the house for a breeze to come from??” one commenter asked.

“Why am I learning more on TikTok than I learned in school?” asked someone else.

While many others chimed in, agreeing that this hack is a game-changer.

“yuppp bathroom window open, bedroom window open with fan pointing out, cool in minutes,” a comment read.

“I have my fan right in front of one open window to suck cool air into my room, and another window open so the warm air gets pushed out. Bliss,” agreed someone else.

“I’ve always pointed my fan out of the window and opened a window elsewhere, open the door and you’re then funneling cool air through the gaff!” read another comment.