Does Cold Temperature Truly Affect a Propane Tank Level Gauge?
Similar to nearly all other types 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 tank level. Usually, this comes into play whenever a homeowner checks the gauge in cold weather conditions and sees the amount of the tank level before and after delivery. Depending on the weather conditions, the tank level may not go up as much as expected.
Propane Tank Level Gauge
The propane tanks guage will show what fraction of the gas tank is still full. Tanks are usually not filled over 80% full because this will allow for the gas to expand on hotter temperatures. Like for example, a 500 gallon tank, at a reading of 80% at normal temperatures reflects around 400 gallons of propane in the tank. This is roughly how much could be stored.
Normal Temperatures
The propane industry manages the popular website Propane 101, that considers the propane baseline 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 close to 60 degrees, then a 500 gallon tank will have around 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 a lot higher than 60 degrees, the gauge would actually read higher due to the expansion of the gas.
Effect of Contraction and Expansion
The energy contained or amount of energy contained inside a tank will not change as the gas either contracts or expands, based on the propane industry website. The amount of propane itself has not changed, but just the density of the gas has changed.
Cold-Weather Delivery
The homeowner who orders 100 gallons of propane will receive about 424 lbs. of propane. With the delivery of 100 gallons, the homeowner with a 1000 gallon propane tank can expect the guage to go up by 10%. 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 conditions, these chillier temperatures would result in a smaller increase reading on the propane gauge.