When you're considering using a 1000 watt inverter to run a refrigerator, you'll need to take a few things into account. First, you'll need to have a battery with enough power to run the inverter for the length of time you need it. Second, you'll need to make sure that the inverter is powerful enough to actually run the fridge.
If you're not sure if your inverter is powerful enough, you can always check the manufacturer's website or specifications. Remember, you'll need to account for the amount of time you need to run the fridge, as well as any other appliances you might want to use while the fridge is running. With a little planning, you can use a 1000 watt inverter to run a refrigerator without any problems.
When choosing an inverter for your home, it's important to consider the types of appliances you'll be running. Some inverters are only meant for small appliances, while others are powerful enough to run large ones. So, be sure to do your research to ensure that you're getting the right one for your needs. You can read more about how to choose the right home inverter here: how to choose inverter for home.

Power Draw
When shopping for an inverter, it's important to know the power draw of your refrigerator in watts. This information is found on the manufacturer nameplate, and is usually expressed in amps or watts.
If the nameplate gives the watts rating, you can use that number directly. However, if the nameplate only lists an amps rating, you'll need to convert it to watts. To do this, simply multiply the amps by the voltage.
Once you know the power draw of your fridge, you can choose an inverter that can handle that load. This will ensure that your fridge can run smoothly, even when the power is out.

When shopping for an inverter, it's important to take into account the running wattage of your appliances. A fridge, for example, typically draws 6 amps. To calculate the running wattage, you multiply 6 by 120 volts to get 600 watts.
However, a fridge motor also needs a jolt of about three times that wattage to start it. So, to be safe, look for an inverter that supplies at least double the wattage you need. That way, you'll have plenty of power for your fridge and any other devices you might want to run at the same time.
Inverter Ratings
When shopping for an inverter, you'll notice that most manufacturers provide two different capacity values on the label. These values represent the inverter's continuous wattage output and its peak surge wattage output.
The continuous wattage is the amount of AC power the inverter can provide on a 24/7 basis. This is the rating you'll want to use for determining how much power your inverter can provide for your needs.

When it comes to choosing an inverter, one of the most important things to consider is the peak surge wattage. This is the maximum amount of AC power that the inverter can provide for a brief period of time. It's important to know this rating because it will determine the inverter's ability to handle sudden spikes in power demand.
Keep in mind that the continuous wattage rating will be lower than the peak surge wattage rating. This is because the inverter needs to be able to handle the surge without overloading and shutting down.
When making your selection, be sure to choose an inverter that can provide the continuous wattage you need. This will ensure that your inverter can handle any power demand spikes that come its way.
You also need to know how much DC battery capacity you’ll have to have on hand to run your refrigerator.
The first thing you need to do is convert the fridge's AC running watts to DC amps. You can do this by dividing the AC running watts by 12 and then multiplying the result by 1.1. So, for example, if your fridge needs 600 AC running watts, it will draw 55 DC amps.
Of course, it’s always a good idea to have more capacity than you think you need, just in case. So, you may want to consider doubling or even tripling the capacity you calculate.
Now that you know how much DC battery capacity you need, you can start shopping for a deep cycle battery that will meet your needs.