1

Would adding a 5000 btu window unit to the main area help my central air unit work less in extreme heat conditions, without significantly increasing my power bill?

Asked by Carlos Paredes
3 months ago
Last Updated: September 24, 2024

I have a quick update on my air conditioning situation. With the crazy heat we’re having, my central air has been running non-stop just to keep the house at a decent temperature. So, I decided to try something out and installed a 5000 btu window unit in the main area of the house. It’s a big open space with the kitchen, dining, and living rooms all together. And let me tell you, it has made a huge difference!

Now, the central air only kicks on every 45 minutes, runs for 15, then shuts off. Before adding the window unit, it was running constantly. Just to clarify, there’s nothing wrong with my central air unit, it’s just not used to this extreme heat.

So, here’s my question – would running the window unit along with the central air help lighten the load on the central unit and save some energy? I’m thinking that if the central air doesn’t have to work as hard, it might give it a break and save on the power bill.

I’m already doing everything else I can think of – closing off rooms, using a ceiling fan, and keeping the shades and curtains closed. But I’m curious if anyone has tried this

Subscribe
Notify of

19 Comments
Oldest
Newest Most Voted
Inline Feedbacks
View all comments
Scarlett Young

Oh yeah, I would totally be up for that! Just remember to close all blinds and curtains and make sure the doors are locked. Hanging blackout curtains or thick blankets on the sunny windows can really help, and avoid using the oven.

Scarlett Young

I was thinking maybe

Scarlett Young
Scarlett Young

Yeah I feel you, the heat is really getting to us here too. And it’s going to stay in the 90s until Monday! Have you checked your outdoor central air unit? We cleaned ours by spraying it with the hose since it was covered in debris.

Scarlett Young

Oh yeah, we make sure to spray it off regularly too. I also read somewhere that using a patio umbrella to shade it from the sun can be beneficial if it’s not already in the shade. I’m glad the window unit is helping you stay cool!

Noelle Banks

I’m in Texas where we’ve already hit triple digits, which will continue through most of the summer. We also have high humidity. We set our AC unit to 74 degrees and use two large ceiling fans to circulate air during the day. I keep my house open to enjoy the views, closing up only at night. We only use the bedroom ceiling fan at night. Our unit runs to maintain the set temperature, and our electric bill averages around $170.00 per month for a 3-bedroom home. That’s pretty normal in our area for the extreme heat. Maybe your problem is related to insulation? Have you checked your windows and doors for proper sealing?

Noelle Banks

No small unit needed, just stick to central air and ceiling fans.

Noelle Banks

I believe central AC units are designed to do the job on their own, so a window AC unit shouldn’t be necessary.

Stacey James

First off, make sure you have a new or clean filter in your furnace, and clean off the outside condenser if the radiator part is blocked.

Melvin Morales

You should get your unit checked out. It should be able to handle the load. The coils might be dirty or frozen, causing it not to function properly. If it was installed for your house size and is not cooling effectively, there is an issue. It’s meant to dehumidify and it seems like it’s struggling with that.

19
0
Would love your thoughts, please comment.x
()
x