What Size Generator Do I Need to Run a Refrigerator and Deep Freezer? Tips for Choosing the Right Generator Size

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Have you ever wondered what size generator you need to keep your refrigerator and deep freezer running during a power outage? It can be a daunting task to figure out the right wattage and capacity, but don’t worry, we’ve got you covered. In this guide, we’ll break down everything you need to know in simple, easy-to-understand language so you can ensure your food stays fresh and frozen when the lights go out. Let’s dive in and find the perfect generator for your needs!



When it comes to making sure your refrigerator and deep freezer continue running during a power outage, having a generator is a must. But choosing the correct size generator for these appliances can be a bit confusing.

Refrigerators and deep freezers are crucial for keeping perishable food items safe. To figure out the right size generator for these appliances, you need to consider the starting and running wattage requirements of each.

A typical refrigerator needs around 800-1200 watts to start and 200-700 watts to run continuously. A deep freezer may require 500-800 watts to start and 100-400 watts to run.

To calculate the total wattage needed, add the starting wattage of both appliances along with their running wattage. For example, if your refrigerator starts at 1000 watts and runs at 300 watts, and your deep freezer starts at 600 watts and runs at 200 watts, the total needed would be 2100 watts.

It’s best to choose a generator with a higher rated wattage than the total needed to handle the starting wattage of both appliances without overloading. A generator with 3000-4000 watts should be enough to run a refrigerator and deep freezer simultaneously.

Having a generator on standby for your refrigerator and deep freezer during a power outage can give you peace of mind and ensure your food stays fresh. By selecting the right size generator, you’ll be ready for any unexpected power interruptions. Check the manufacturer’s specifications for your appliances to ensure you choose the appropriate size generator.



1. What size generator do I need to run a refrigerator and deep freezer?
– A generator with a power output of at least 2,000 to 3,000 watts should be sufficient to run a refrigerator and deep freezer simultaneously.

2. Can I run a refrigerator and deep freezer on a smaller generator?
– It is possible to run a refrigerator and deep freezer on a smaller generator, but it may not be able to handle the starting power surge of both appliances simultaneously, leading to potential damage.

3. How do I calculate the size of generator needed for my refrigerator and deep freezer?
– To calculate the size of generator needed, add the starting wattage of your refrigerator and deep freezer together, then add 20% to that total for safety margin. This will give you the minimum power output required for reliable operation.



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