Can A Portable Generator Run a Central Air Conditioner?

Can A Portable Generator Run a Central Air Conditioner?

Central air conditioning is an excellent way to keep a comfortable temperature. You may not use the utility system if your home is affected by a storm surge or local power failure. Home generators can help keep water pumps running, but what about your air conditioner? As central air conditioning systems use significant energy, it’s no surprise that portable generators can power them. We investigated it to find an answer for you.

Portable generators can power the Central Air Conditioner. Portable generators can do more than just power small appliances. You can keep your home system running while consuming much energy in a power outage. It is best to choose a portable generator that is powerful enough to run the air conditioner: the air conditioner and any other vital systems connected to it.

Everything you need to know about using a portable generator for the air conditioner to power a central air conditioner is right here. Continue reading what size generator to run the central air conditioner during a power outage.

How Does It Work?

Portable generators frequently power small, low-power devices during power outages. One of the most common uses for portable generators is to keep critical home systems operational in an electrical outage. There are numerous generators, which are distinguished primarily by their power generation capacity and battery life. The generator’s wattage determines its output. The general rule is to purchase a generator with a slightly higher wattage than the air conditioner requires.

Also check: How To Increase Airflow To One Room?

What Size Generator To Run The Air Conditioner?

The wattage requirements of the cooling system determine the generator required to power the central air conditioner. The generator’s size can indicate its output, but it is not a reliable indicator of its power.

Always use the proper wattage device. Never rely on a quote or your convictions. Overloading the generator can cause it to fail, the cooling system to explode, or the generator to ignite.

Factors to Consider:

Let’s look at the primary factors that influence whether or not a portable generator can be used with a central air conditioner:

1.    Generator Watts:

A portable generator’s wattage output determines whether it can power a central air conditioner. A central air conditioner’s starting or surge wattage is larger than required for continuous operation. Your generator’s starting and running power should be greater than required to run the air conditioner.

2.    Power Generation Unit:

The type of generator is also significant. Inverter generators are noted for producing cleaner and more consistent power. Because they limit power output, they are suitable for use with sensitive equipment such as air conditioners. Inverter generators keep the air conditioner running at a steady temperature by eliminating spikes and dips in the power supply.

3.    Load Distribution:

Adjusting your generator’s load to avoid failing during a power outage is critical. A central air conditioner can consume a significant amount of electricity. To avoid overloading the generator, only necessary power gadgets are needed. You may ensure the generator has enough electricity to run the air conditioner by turning off extra electronics and balancing the load.

4.    Assistance from Qualified Individuals:

If you have doubts whether the two systems will function together, consult an electrician or someone with experience installing generators. They are trained to assess your needs, advise you on the best generator size, and ensure a safe and efficient installation of your air conditioner and generator.

Can A Portable Generator Operate A 2.5-ton AC Unit?

It is preferable to be safe and purchase a generator with a higher capacity rather than having the central air conditioning system operate on a lower capacity. You don’t want to permanently harm your system by choosing a generator with a lower power output than needed.

What size generator to run a 2-ton ac unit? To power a 2-ton or 12-BTU air conditioner, a 10,000-watt air conditioner generator is recommended.

Portable generators have evolved to power numerous devices and systems. Generic manufacturers manufacture portable generators with up to 17,500 watts of power. With that much power, you can comfortably run multiple systems and appliances for an extended period. However, because of their portability, portable generators are significantly more expensive.

How Many Watts Does The Central Air Conditioning System Use?

Several factors influence the amount of power used by a central air conditioner. Older, low-maintenance air conditioners use less energy than newer, more energy-efficient systems. The BTU required to cool the living space is an important consideration when determining the wattage of a freezing system.

If the refrigeration area is large, the air conditioner must use more energy to circulate air throughout the room and keep the temperature stable. A typical central air conditioner uses 3,500 W of power or 12,000 BTUs per hour.

Look for a portable generator with 6,000 to 6,500 watts when purchasing one to meet this average standard. Wall-mounted air conditioners use less energy and are more efficient. However, they are more accessible to power from a portable generator because they use less power.

Also, check: Does A Nest Thermostat Work With A Heat Pump?

Will A 65000 Watt Generator Run A Central Air Conditioner?

A 6500-watt generator can power the air conditioner. More than 2,000 Watts of Electrical Output Per Hour is required to cool and push air in almost any space.

Portable generators are the best to run small air conditioners in an emergency until power is restored.


A Portable Generator can help you relieve stress. Power outages and electrical problems are mostly unforeseeable and unavoidable. A robust generator that can power critical systems in your home is priceless.

The best approach is to consider how much power the generator will need to run all emergency equipment. With some research and planning, you can find the best portable generator to keep you cool in the face of complex and unexpected problems!


Can you run central AC on a portable generator?

A portable generator can indeed power your central air conditioner. Portable generators and modest power gadgets can keep energy-intensive home systems functioning during power outages.

Will a 5000-watt generator run central air?

Although you could run a new, energy-efficient, tiny central air conditioner with a 5000-operating-watt generator, we would prefer an emergency window air conditioner because 5000-watt generators might not have enough starting power.

Will a 7500-watt generator run central air?

Operating a central heating or cooling system is the primary benefit of a 7,500-watt generator over a less potent option.

How many watts does it take to run a central air conditioner?

For each ton of cooling capacity, central air conditioners consume 1,000 watts. With standard-height ceilings, a 2,000-square-foot home will require around 3.5 tons of cooling capacity. An air conditioner with this capacity will need roughly 3,500 watts per hour.

What’s the difference between an inverter generator and a normal generator?

Alternating Current (AC) power is produced by conventional generators using a mechanical alternator. Inverter generators similarly use an alternator to generate AC power. Still, this electricity is first converted to direct current (or DC) before being inverted again into more dependable AC power by a microprocessor.


About Author

Gulzar Abid

Gulzar Abid

Gulzar Abid is a passionate entrepreneur with a thirst for knowledge and yearns to help empower people to initiate their journey of growth and success. Chief Executive Officer K2 Groups Chief Executive Officer K2 Heating & Air Conditioning

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