What Size Propane Tank Do I Need for 22kw Generator

If you are bothered with this question: “what size propane tank do I need for 22kw generator?”, find out the perfect propane tank size to power your 22kW generator in this article.

Learn about factors that affect the tank capacity and make an informed decision for uninterrupted power supply during emergencies.


In times of power outages and emergencies, having a reliable backup power source is crucial. As one of the types of generators, propane-fueled generators, such as a 22kW generator, offer a dependable solution for maintaining essential electricity. However, selecting the correct propane tank size is vital to ensure continuous power supply.

This article will guide you through the process of choosing the right propane tank size for your 22kW generator. We will explore various factors that affect tank capacity and provide valuable insights to help you make an informed decision. Additionally, we will highlight the benefits of using propane as a fuel source for your generator.

what size propane tank do I need for 22kw generators

Factors to Consider When Determining the Appropriate Propane Tank Size

Several factors should be taken into consideration when determining the appropriate propane tank size for your 22kW generator. These factors will help you make an informed decision that aligns with your specific requirements and ensures a reliable fuel supply. Let’s explore these factors in detail:

Generator Fuel Consumption

Understanding the fuel consumption rates of your 22kW generator is essential in determining the appropriate propane tank size. Manufacturers typically provide information on fuel consumption in gallons per hour (GPH) or pounds per hour (PPH). By calculating the estimated runtime based on the fuel consumption rate, you can gauge the tank capacity required to sustain your generator’s operation smoothly. This calculation ensures that you have enough fuel to power your generator for the desired duration.

Tank Capacity Options

Propane tanks are available in various sizes to accommodate different needs. Common tank sizes include 20 lb, 30 lb, 40 lb, 100 lb, 250 lb, and 500 lb. Each tank size offers a different propane storage capacity, which directly impacts the runtime of your generator. Let’s compare these common tank sizes to help you make an informed choice:

  1. 20 lb Tank: This compact tank size is suitable for portable applications or smaller power requirements. It offers limited storage capacity but provides flexibility due to its lightweight nature.
  2. 30 lb Tank: Slightly larger than the 20 lb tank, the 30 lb tank offers a bit more storage capacity while still maintaining portability.
  3. 40 lb Tank: With a higher storage capacity, the 40 lb tank can power your generator for an extended period. However, it is less portable and requires more space for installation.
  4. 100 lb Tank: The 100 lb tank provides even greater fuel storage capacity, offering a longer runtime. It is suitable for larger power needs but may require a dedicated space for installation.
  5. 250 lb and 500 lb Tanks: These larger tanks are ideal for commercial applications or situations where an extended runtime is essential. They provide ample fuel storage but require significant space for installation.

Consider your specific power requirements, available space, and portability needs to select the most suitable tank size for your generator.

Safety Considerations

Safety should always be a priority when dealing with propane. It is crucial to adhere to safety guidelines for propane storage and usage. Familiarize yourself with proper handling and storage practices for propane tanks, ensuring a secure and hazard-free environment for both you and your property. Follow all safety instructions provided by the manufacturer and consider consulting a professional if you have any safety concerns.

Refilling and Availability

When selecting a propane tank size, it is important to consider the options available for refilling in your area. Research local refill stations or delivery services to ensure convenient access to propane when needed. Additionally, assess the availability of propane in your region, as supply constraints can vary depending on location. It is crucial to have a reliable source of propane and to plan accordingly to avoid any interruptions in fuel supply.

By taking these factors into account, you can determine the appropriate propane tank size for your 22kW generator that aligns with your specific requirements, ensures a reliable fuel supply, and prioritizes safety.


Choosing the right propane tank size is crucial to ensure uninterrupted power supply from your 22kW generator. By considering factors such as generator fuel consumption, tank capacity options, space requirements, safety considerations, and propane availability, you can make an informed decision.

Remember to calculate runtime estimates, prioritize safety, and evaluate the convenience of refilling options in your area. By selecting the ideal propane tank size, you can confidently rely on your 22kW generator to provide a reliable power source during emergencies and unexpected outages.

If you have any additional questions or concerns, consult with a qualified professional or propane supplier to assist you in making the best choice for your specific needs.

FAQs (Frequently Asked Questions)

Question: How long will a 20 lb propane tank last with a 22kW generator?

Answer: The runtime of a 20 lb propane tank with a 22kW generator can vary depending on factors such as fuel consumption rate and load. As a general estimate, a 20 lb propane tank can provide approximately 10-12 hours of runtime with a 22kW generator operating at 50% load.

Question: Can I use multiple smaller tanks instead of one large tank?

Answer: Yes, you can use multiple smaller propane tanks instead of one large tank for your 22kW generator. This offers flexibility in refilling options and ease of handling. However, ensure proper connection and synchronization between the tanks to maintain a continuous fuel supply to the generator.

Question: Are there any regulations or permits required for propane tank installation?

Answer: Regulations and permit requirements for propane tank installation vary by local codes and authorities. Check with your local building or fire department to determine specific regulations and permit requirements for propane tank installation in your area. Compliance with safety standards and installation by a licensed professional is typically necessary.

Question: Can I use a larger propane tank with my 22kW generator for extended runtime?

Answer: Yes, you can use a larger propane tank with your 22kW generator to achieve extended runtime. Larger tanks, such as 100 lb, 250 lb, or 500 lb, have higher storage capacity and provide longer operating hours before requiring a refill. Ensure compatibility between the generator, installation, and the larger tank size, and follow safety guidelines for propane storage and usage.

Question: What is the typical lifespan of a propane tank?

Answer: The typical lifespan of a propane tank varies depending on factors such as maintenance, usage, and environmental conditions. With proper care and regular inspections, propane tanks can last 20 years or more. Follow manufacturer guidelines for maintenance, including visual inspections, valve checks, and periodic pressure tests, to ensure tank longevity and safety.

Question: How do I determine if my propane tank is empty or needs a refill?

Answer: To determine if your propane tank is empty or needs a refill, you can use several methods. One common approach is to weigh the tank using a bathroom scale. Subtract the empty (tare) weight of the tank from the total weight to estimate the propane level. Some tanks have built-in gauges or indicators showing the approximate fuel level. Propane suppliers can also provide refilling services and assist in determining the tank’s fill level.

Question: Are propane tanks compatible with all 22kW generator models?

Answer: Propane tanks are generally compatible with most 22kW generator models designed for dual-fuel operation. Ensure that the generator specifically supports propane as a fuel source. Refer to the generator manufacturer’s specifications or consult a qualified professional to verify compatibility and any specific requirements for propane use.

Question: Can I use a 22kW generator with a propane tank indoors?

Answer: The use of a 22kW generator with a propane tank indoors requires caution and adherence to the generator safety guidelines. It is generally recommended to use generators, including propane-fueled ones, in well-ventilated outdoor areas to prevent the buildup of potentially harmful exhaust fumes. If indoor use is necessary, consult local building codes and regulations, ensure proper ventilation and installation to minimize risks associated with carbon monoxide or other emissions.

Question: Are there any special maintenance requirements for propane tanks used with generators?

Answer: Propane tanks used with generators have specific maintenance requirements to ensure safe and reliable operation. Regular visual inspections for damage, such as rust or corrosion, are essential. Valve checks, leak tests, and pressure tests may be recommended periodically. Refer to the tank manufacturer’s guidelines or seek assistance from a qualified professional to understand and fulfill the maintenance requirements specific to your propane tank.

Question: Can I convert a gasoline or diesel generator to run on propane?

Answer: In some cases, it is possible to convert a gasoline or diesel generator to run on propane. This conversion process typically involves specialized kits and technical expertise. Consult with the generator manufacturer or a qualified professional to determine if a conversion kit is available for your specific generator model and to ensure the conversion is performed correctly and safely.

Question: What is the cost comparison between using propane and other fuel sources for a 22kW generator?

Answer: The cost comparison between using propane and other fuel sources for a 22kW generator can vary depending on factors such as fuel prices and availability in your area. Propane prices can fluctuate, but it is generally considered a cost-effective fuel option. The efficiency of propane generators and the ability to store propane long-term without deterioration can contribute to overall cost savings. Compare fuel prices and consumption rates to determine the cost-effectiveness of propane versus other fuel sources for your specific needs.

Question: Can I store a propane tank outdoors, or does it require specific storage conditions?

Answer: Propane tanks can be stored outdoors but require specific storage conditions for safety. When storing propane tanks outdoors, keep them in a well-ventilated area away from ignition sources and combustible materials. Protect the tanks from extreme weather conditions, such as direct sunlight or freezing temperatures, as these can affect performance and tank integrity. Consult safety guidelines and local regulations for specific storage requirements in your area.

Question: What safety precautions should I take when handling or transporting propane tanks?

Answer: When handling or transporting propane tanks, follow safety precautions to prevent accidents or hazards. Some key measures include ensuring tanks are secure and upright during transportation, avoiding dropping or mishandling tanks, refraining from smoking near tanks or exposing them to open flames, using appropriate personal protective equipment (such as gloves and safety goggles), being cautious of valve openings, and familiarizing yourself with emergency procedures and contact information for propane suppliers or emergency services in case of incidents or leaks.

Question: Are there any specific considerations for cold weather operation of a propane-powered generator?

Answer: Cold weather operation of a propane-powered generator requires specific considerations. Propane can be affected by low temperatures, potentially causing reduced vaporization rates and impacting generator performance. To mitigate these effects, ensure the propane tank and fuel lines are properly insulated, and use a cold-weather regulator if necessary. Follow manufacturer recommendations for starting and operating the generator in cold conditions, and consider additional measures such as winter-grade propane or fuel additives for improved cold weather performance.

Leave a Comment