Does Cold Temperature Truly Affect a Propane Tank Level Gauge?
Similar to the majority of other types of materials, propane is affected by cold temperatures. When the temperature declines, the propane gas contracts. That reduced level of gas in the tank is reflected by the gauge that reflects the tank level. Normally, this occurs 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 conditions, the level on the tank may not go up as much as expected.
Propane Tank Level Gauge
The gauge on a propane tank shows you what portion of the tank is full. Normally, tanks are not filled more than 80% so as to enable the gas to expand on hot days. Like for example, a 500 gallon tank, at a reading of 80% at normal temperatures reflects about 400 gallons of propane in the tank. This is around how much can be stored.
Normal Temperatures
The propane industry manages the popular web site Propane 101, which considers the propane reference point to be an exterior temperature of 60 degrees. 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 will contain around 250 gallons of propane. If the temperature that same day is a lot lower than 60 degrees, the gauge will read lower. Also, if the temperature is a lot higher than 60 degrees, the gauge will actually read higher since the gas expanded.
Effect of Contraction and Expansion
The energy contained or amount of energy contained in a tank will not change when the gas either contracts or expands, according to the propane industry website. 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 will receive 424 lbs. 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 will be correct if the temperatures were near 60 degrees at the time of delivery. If the delivery took place during colder weather, these chillier temperatures would cause a smaller increase reading on the propane gauge.