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Does Cold Temperature Affect a Propane Tank Level Gauge?
Like nearly all other kinds of materials, propane is affected by cold temperatures. As the temperature goes down, the propane gas contracts. That reduced level of gas in the tank is reflected by the gauge that reflects the level on the propane tank. Normally, this comes into play whenever a homeowner checks the gauge during cold weather and sees the amount of the tank level before and after delivery. Depending on the climate, the level on the tank may 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 typically not filled more than 80% full because this will allow for the gas to expand during hotter days. Like for instance, a 500 gallon tank, at a reading of 80% at normal temperatures reflects roughly 400 gallons of propane inside the tank. This is about the amount which is able to be stored.

Normal Temperatures
The propane industry operates the popular website Propane 101, which considers the propane reference point to be an exterior temperature of 60 degrees. For instance, if the gauge reads 50 percent of capacity on a day when the temperature is near 60 degrees, then a 500 gallon tank would have about 250 gallons of propane. If the temperature that same day is a lot lower than 60 degrees, the gauge will read lower. Similarly, if the temperature is a lot higher than 60 degrees, the gauge will actually read higher because the gas expanded.

Effect of Expansion and Contraction
The energy contained or amount of energy contained within a tank will not change as the gas either contracts or expands, according to the propane industry web site. The amount of propane itself has not changed, but just 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 pounds of propane. If the homeowner has a 1000 gallon propane tank, they may expect the gauge to go up by 10% with the delivery of 100 gallons. These numbers would be correct if the temperatures were near 60 degrees at the time of delivery. If the delivery happened during colder weather, these chillier temperatures will result in a smaller increase reading on the propane gauge.

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