# Question: How does a propane tank gauge work?

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How do gas gauges work? Propane tank gauges don’t measure the level of propane in the tank, but rather they measure the pressure of gas being pushed out and into the hose attached to the appliance/grill/RV. The propane tank gauge will not take readings until the propane tank valve is opened for gas flow.

## How does a magnetic propane gauge work?

The magnets just measure the temperature of the tank rather than directly measuring the actual liquid level. … If the entire magnet is over the liquid or the air part (the line is above or below the magnet) then it will show a consistent temperature and you will think it doesn’t ‘work’.

## How does a propane tank float gauge work?

The float gauge in a propane tank consists of moving parts located both inside the tank and outside. At the end of the stem is the float (pictured below) that rises and falls with the level of the propane in the tank.

## Can propane tank gauge go bad?

Unlike fuel sources that can degrade over time (kerosene, diesel, gasoline), propane fuel has no expiration date, nor will its potency suffer while being stored.

## How much propane is in a 20 lb tank?

20 lb Propane Tank

20 pound propane tanks are often referred to as grill cylinders and hold 4.6 gallons of propane when full.

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## How much does a full 20 lb propane tank weigh?

Weigh the tank

Most propane cylinders for grills weigh about 17 pounds when empty and hold about 20 pounds of propane. Here’s how you use weight to measure how much propane is left in your cylinder: Put it on a scale and note the weight. Subtract the tare weight number.

## How long will a 20 lb propane tank last at 50000 BTU?

At a high level, (21,600×20)= 432,000 BTUs capacity in a full tank. 432,000/50,000 = 8.64 hours.