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What size generator will run a house?

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Choosing the right size generator is crucial when it comes to ensuring that your house remains powered during unexpected outages. With various factors to consider, such as the appliances and devices you want to run, as well as the overall power consumption of your household, it can be a challenging task. In this article, we will explore the factors that need to be taken into account when selecting a generator size for your house. We will also provide insights and guidance on how to determine the appropriate size generator that can meet your power needs. Whether you are looking for a backup power solution or planning for a new generator installation, understanding the key considerations will help you make an informed decision and provide peace of mind knowing that your house will continue to function smoothly during power disruptions.

Factors to Consider for Choosing the Right Size Generator

When it comes to choosing the right size generator, there are several important factors to consider. One of the key considerations is the power requirement of the equipment or appliances that you plan to run. Calculating the total wattage of these devices will give you a good idea of the generator capacity you need.

Another factor to consider is the type of generator that suits your needs. One option to consider is a containerized generator. These generators are designed to be portable and easy to transport. They come in various sizes and can be easily moved from one location to another. Containerized generators are ideal for construction sites, events, or any situation where power is needed temporarily.

Additionally, the fuel source for the generator is an important factor to consider. Most generators run on either gasoline or diesel. Gasoline generators are typically less expensive, but they may not be as fuel-efficient as diesel generators. Diesel generators, on the other hand, are known for their durability and fuel efficiency. They are also less flammable than gasoline generators, making them a safer option in certain environments.

Noise level is another crucial consideration when choosing a generator. Generators can be noisy, especially if they are running for an extended period. If you plan to use the generator in a residential area or during events where noise can be a disturbance, it's important to choose a generator with a low noise level. Look for generators that are specifically designed to operate quietly, as this will ensure a more peaceful and comfortable environment.

Lastly, it's essential to consider the budget for your generator. Generators come in a wide range of prices, depending on their size, features, and brand. It's important to set a budget and stick to it while considering the other factors mentioned above. Remember, the most expensive generator may not always be the best choice for your needs. It's crucial to find a balance between cost and quality.

Determining the Appropriate Size Generator for Your House

When it comes to ensuring a continuous power supply for your home, a generator plays a crucial role. However, choosing the right size generator for your house can be a daunting task. It is essential to consider various factors to determine the appropriate size that will adequately meet your power needs. This article aims to guide you in selecting the right generator size for your household requirements.

One factor to consider is the power capacity of the generator. The size of a generator is typically measured in kilowatts (kW). To determine the power capacity you need, you should first calculate the total wattage of all the electrical devices and appliances you want to power during an outage. Make a list of all the essential items such as refrigerators, air conditioners, lights, heating systems, and other necessary equipment. Add up their wattage to get an estimate of the total power capacity required.

Another important consideration is the starting wattage of the devices. Some appliances require more power to start up than they do to run continuously. For example, air conditioners and refrigerators have higher starting wattage due to the motors they use. It is crucial to take this into account when determining the appropriate generator size. Ensure that the generator you choose can handle the starting wattage of your highest-demand devices.

The duration of power outages in your area is also a significant aspect to consider. If you live in an area where outages are infrequent and short-lived, a smaller generator may suffice. However, if your region experiences long power outages or severe weather conditions that can disrupt the power supply for extended periods, it is advisable to opt for a larger generator with a higher power capacity.

Noise level is another factor to consider, especially if you live in a residential neighborhood. While larger generators often have more power capacity, they tend to produce more noise. If noise is a concern for you, consider investing in a containerized generator, which is specially designed to minimize noise levels. These generators are enclosed in soundproof containers, significantly reducing the noise they emit.


Choosing the right size generator involves considering factors such as power requirements, the type of generator, fuel source, noise level, and budget. By carefully evaluating these factors, you can select a generator that meets your specific needs and provides reliable power whenever and wherever it's needed. The selection process should include evaluating your power needs, starting wattage of devices, expected duration of power outages, and noise level preferences. It is important to consult with a professional if you are unsure about the specific power requirements of your household.


Estabished in 2002, We--FUAN LONGKAI POWER CO.,LTD become one of the professional players of generating set manufacturer in China. The factory of Longkai, occupying a total space of 46,000 ㎡, is located in Fuan City, Fujian Province, China.    



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