What Size Generator to Run Central Air Conditioner

As the weather gets hotter, many people start to think about how they will keep their homes cool. A central air conditioner is a great option, but you need to make sure you have the right size generator to run it. The first step is to determine the size of the room or area that you want to cool.

Once you have that number, you can consult a generator sizing chart.

As the weather gets warmer, many people are wondering what size generator to run central air conditioner. The answer may surprise you – it’s actually not as big as you might think! A typical central air conditioner will use about 3500 watts of power.

That means that a generator that can produce 4000 watts of power will be more than enough to keep your AC running. Of course, it’s always a good idea to err on the side of caution and get a generator that’s slightly larger than what you need. That way, you’ll be prepared for any unexpected power surges or additional loads (like powering a fridge or freezer).

So there you have it – when it comes to choosing a generator for your central air conditioner, size does matter… but not as much as you might think!

Can I run central A/C on Backup Generator Power?

What Size Generator to Run 3 Ton Ac Unit

If you’re wondering what size generator to run a 3 ton AC unit, the answer may surprise you. You actually don’t need a very large generator at all. In fact, a 5,500 watt generator will do the trick quite nicely.

Now, obviously you’ll want to make sure that your generator can handle the start-up load of your AC unit. But once it’s running, the actual power draw is quite small. So a 5,500 watt generator should be plenty to keep your 3 ton AC unit up and running during a power outage.

What Size Generator to Run Central Air Conditioner

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Can I Run My Central Ac With a Generator?

If you’re like most people, you rely on your central air conditioner to keep your home cool and comfortable during the summer months. But what happens if there’s a power outage and your AC unit is no longer working? This is where a generator comes in handy.

But can you run your central AC unit with a generator? The answer is yes, but there are a few things you need to know first. For starters, it’s important to choose the right size generator for your AC unit.

If you have a large AC unit, you’ll need a larger generator that can handle the increased power load. Likewise, if you have a smaller AC unit, you won’t need as large of a generator. Another important consideration is the type of fuel that powers the generator.

Gasoline generators are typically less expensive than diesel or propane models, but they require more maintenance and may not run as long before needing refueling. Diesel and propane models may cost more upfront, but they’re usually more durable and require less maintenance in the long run. Finally, make sure to read the instructions carefully before using your generator.

Many models require special hookups or adapters in order to work with an AC unit, so it’s important to follow all directions carefully. Failure to do so could damage your equipment or even pose a safety hazard. With these tips in mind, running your central air conditioner with a generator is definitely possible – just be sure to do your research beforehand!

Will a 6000 Watt Generator Run Central Air?

No, a 6000 watt generator will not run central air. Central air conditioners require a lot of power to start and run, and most units have at least a 5000 watt rating. Some central air units may have higher ratings, up to 7500 or even 10000 watts.

So a 6000 watt generator is not likely to be able to provide enough power to start and run a central air unit.

Will a 12000 Watt Generator Run an Air Conditioner?

No, a 12000 watt generator will not run an air conditioner. The average air conditioner requires about 3500 watts to operate, meaning that a 12000 watt generator could only power a small window air conditioner.

Will a 5500 Watt Generator Run Central Air?

It is unlikely that a 5,500 watt generator will be able to run central air. Central air units typically require around 10,000 watts to start and then about 1,200 watts to run.


A generator is a great way to keep your central air conditioner running during a power outage. But what size generator do you need to run your AC unit? The answer depends on the wattage of your AC unit.

Most central air conditioners use about 3500 watts of power. So, you would need a generator that produces at least 3500 watts of power to run your AC unit. If you want to be able to run other appliances in your home while also running your AC, then you’ll need a bigger generator.

A good rule of thumb is to choose a generator that produces twice the amount of power that your AC unit uses. So, if your AC unit uses 3500 watts of power, then you’ll need a 7000 watt generator. There are a lot of different generators on the market, so it’s important to do some research before choosing one.

Make sure to read reviews and compare prices before making your final decision.

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