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Does Cold Really Affect the Level Gauge on a Propane Tank?
Propane is like most other kinds of materials in that it is affected by cold temperatures. The propane gas contracts as the temperature does down. That reduced level of gas in the tank is reflected by the gauge which reflects the tank level. Usually, this comes into play whenever a homeowner checks the gauge during cold conditions and sees the amount of the tank level before and after delivery. Depending upon the weather, the level on the tank might not rise as much as anticipated.

Propane Tank Level Gauge
The gauge on the propane tank would show what portion of the gas tank is still full. Tanks are usually not filled more than 80% full since this will allow for the gas to expand during hotter temperatures. Like for instance, a 500 gallon tank, at a reading of 80 percent at normal temperatures reflects roughly 400 gallons of propane inside the tank. This is around how much can be stored.

Normal Temperatures
The propane industry operates the popular website Propane 101, that considers the propane reference point to be an exterior temperature of 60 degrees. Like for example, if the gauge reads 50 percent of capacity on a day when the temperature is close to 60 degrees, then a 500 gallon tank would contain about 250 gallons of propane. If the temperature that day is much lower than 60 degrees, the gauge would read lower. Similarly, if the temperature is much higher than 60 degrees, the gauge would actually read higher because the gas expanded.

Effect of Contraction and Expansion
According to the information provided by the propane industry web site, the amount of energy contained in the tank does not actually change when the gas expands or contracts. The amount of propane itself has not changed, but only the density of the gas has changed.

Cold-Weather Delivery
If a homeowner orders 100 gallons of propane to be delivered, they would be given 424 lbs. of propane. If the homeowner has a 1000 gallon propane tank, they can expect the gauge to go up by 10% with the delivery of 100 gallons. These numbers will be accurate if the temperatures were close to 60 degrees at the time of delivery. If the delivery took place during colder weather, these chillier temperatures will result in a smaller increase reading on the propane gauge.

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