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Does Cold Temperature Truly Affect a Propane Tank Level Gauge?
Propane is like most other types of materials in that it is affected by cold temperatures. The propane gas contracts as the temperature declines. That reduced level of gas inside the tank is reflected by the gauge that reflects the tank level. Normally, this occurs whenever a homeowner checks the gauge during cold climate and sees the amount of the tank level before and after delivery. Depending upon the weather, 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 percentage of the gas tank is still full. Tanks are normally not filled more than 80% full because this will allow for the gas to expand on warmer days. Like for example, a 500 gallon tank, at a reading of 80 percent at normal temperatures reflects approximately 400 gallons of propane in the tank. This is roughly the amount which can be stored.

Normal Temperatures
The web site Propane 101, that is managed by the propane industry, considers an exterior temperature of 60 degrees to be the baseline or reference point. Like for example, if the gauge reads 50% of capacity on a day when the temperature is close to 60 degrees, then a 500 gallon tank will have roughly 250 gallons of propane. If the temperature that same day is a lot lower than 60 degrees, the gauge will read lower. In the same way, if the temperature is a lot higher than 60 degrees, the gauge would actually read higher since the gas expanded.

Effect of Expansion and Contraction
The energy contained or amount of energy contained in a tank will not change as the gas either expands or contracts, based on the propane industry website. 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 could expect the gauge to go up by 10% with the delivery of 100 gallons. These numbers will be correct if the temperatures were close to 60 degrees at the time of delivery. If the delivery took place during colder weather conditions, these chillier temperatures would cause a smaller increase reading on the propane gauge.

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