When it comes to installing gas logs in your home, one of the most important considerations is the size of the propane tank that will be used to fuel the logs. The size of the tank needed will depend on a number of factors, including the size of the logs, the amount of use, and the climate.
First and foremost, the size of the gas logs is a major determining factor in the size of the propane tank required. Larger gas logs will require more fuel to run, and therefore will need a larger tank. On the other hand, smaller logs will not require as much fuel and can be run with a smaller tank.
Another important factor to consider is the amount of use the gas logs will get. If you plan to use the gas logs regularly and for extended periods of time, you will need a larger propane tank to ensure that you have enough fuel to keep the logs running. On the other hand, if you only plan to use the gas logs occasionally or for short periods of time, a smaller tank may be sufficient.
Climate also plays a role in determining the size of the propane tank needed for gas logs. In colder climates, the gas logs will need to run for longer periods of time to keep the room warm. This means that a larger propane tank will be needed to ensure that there is enough fuel to run the logs throughout the winter. In warmer climates, the gas logs may not need to run as often and a smaller tank may be sufficient.
In general, a 100-pound propane tank is sufficient for most gas log setups. However, it is best to consult with a professional or the manufacturer of the gas logs to determine the specific size of tank needed for your setup. They will take into account the factors such as size of the logs, usage and the climate.
Additionally, it’s important to remember that propane tanks require regular maintenance, so it’s important to check the level of propane in the tank and refill it as needed.
Overall, determining the right size propane tank for your gas logs is a crucial step in the installation process. By considering factors such as the size of the logs, the amount of use, and the climate, you can ensure that you have the right size tank to keep your gas logs running smoothly and efficiently.
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To Make a Calculation
Let’s say you have a 50,000 BTU gas logs on your home, to calculate the amount of propane consumption and cost per gallon, here’s the computation:
- 50,000 BTUs divided by 91,500 BTUs/gallon = 0.546 gallon
- 0.546 multiply by $3.00/gallon = $1.639 per hour
(Constant: there are 91,500 BTUs per gallon of propane; and granting that $3 is the price of propane per gallon)
Consumption and the Length of Time You Want to Operate the Gas Logs, Play a Crucial Role
in order to determine the appropriate size propane tank for your gas logs, it is important to know the rate of LPG (propane) consumption and the length of time that you intend to operate the gas logs. The rate of consumption is measured in BTU (British Thermal Units) per hour, and this information can typically be found on the manufacturer’s specifications or by consulting with a professional. The length of time that you intend to operate the gas logs will also play a role in determining the size of the tank needed.
For example, if you have a gas log set that consumes 40,000 BTU per hour and you plan to operate it for 8 hours a day, then you’ll need a tank that can hold at least 320,000 BTU of propane. And depending on the climate, you may need to run the gas logs for longer periods of time.
It’s also important to consider the weather conditions in your area and how it may affect the consumption of propane. For example, if you live in an area with colder winters, you may need to run the gas logs more frequently and for longer periods of time to keep your home warm, which will increase the consumption of propane.
Determining the right size propane tank for your gas logs requires knowledge of the LPG consumption rate in BTU per hour and the length of time that you intend to operate the gas logs, as well as the climate conditions of your area. It’s recommended to consult with a professional or the manufacturer of the gas logs to determine the specific size of tank needed for your setup.
Take Into Account Weather Conditions and How They May Affect Consumption
When determining the appropriate size propane tank for gas logs, it’s important to take into account the weather conditions in your area and how they may affect consumption. For example, if you live in an area with colder winters, you may need to run the gas logs more frequently and for longer periods of time to keep your home warm, which will increase the consumption of propane. Similarly, if you live in an area with hot summers, you may need to run the air conditioning more often, which may also increase the consumption of propane.
Additionally, you should also consider the wind, rain, and snow, since they all can affect the combustion process and increase the consumption of propane. For example, windy weather can cause the flame to flicker, which can lead to an increased consumption of propane. Rain and snow can also cause the flame to flicker, and in some cases, can even extinguish the flame altogether.
Consult With the Manufacturer or a Professional
Consulting with the manufacturer or a professional is an important step in determining the appropriate size propane tank for your gas logs. The manufacturer of the gas logs can provide you with detailed information on the LPG consumption rate (measured in BTU per hour) and the recommended size of the propane tank that is needed to operate the logs. This information can be found in the owner’s manual or on the manufacturer’s website.
A professional, such as a licensed gas contractor or propane supplier, can also help you determine the appropriate size propane tank for your gas logs. They will be able to take into account your specific circumstances, such as the size of your home, the number of gas logs, and the weather conditions in your area, to recommend the appropriate size tank for your needs. They can also advise you on the best location for the tank, the safety measures that need to be taken, and the cost of installation, maintenance and inspection.
In Conclusion
Determining the appropriate size propane tank for your gas logs is important to ensure that you have enough propane to keep your home warm and comfortable throughout the year. Factors such as the rate of LPG consumption, the length of time the gas logs will be operated, and weather conditions in your area all play a role in determining the size of the propane tank needed. Consultation with a professional or the manufacturer can provide you with a more accurate estimate of the appropriate size propane tank.
It is important to take into account safety measures, proper ventilation, and regulations and codes when choosing the location for the propane tank. The cost of propane tanks and maintenance is also an important aspect to consider before making a decision. By taking all of these factors into account, you can ensure that you have the appropriate size propane tank for your gas logs and can enjoy a warm and comfortable home all year round.


Mike is an experienced propane technician with over 15 years of professional experience in the field. He has dedicated his career to helping customers with their propane needs, from installation to maintenance and repair. Together with Jeremy, he co-founded this website to provide useful information and guidance to customers seeking reliable propane services.