Thanks for replying. When the tank was filled in early October the tank guage read just over 80. I don't know if that is 80 percent, 80 gallons, or 80 psi. I think the guage reads 120 max (so it can't be percent).

Now in early November the tank guage reads around 20. I was told to refill the tank when it reaches 20. I could understand the pressure dropping some as the weather cools (if it is pressure I'm reading) but not down to 20!

I need to get the gas comapny out.