I had my propane company come to install a Tankless water heater & dryer. They changed the regulator at the tanks but didn't get a perfect flare so that junction had a very small leak. 2 months later I noticed that I had used 70% of my propane. I complained to the supplier and was told that only Vapor was leaking and that it would not account for the fuel loss. This sounds like pure BS to me. Is there any reason that I should believe them????
The other factors involved are: This is a summer rental home so the home was vacant for the 2 months in question. The propane furnace is only used for emergency heat when the heat pump can't keep up. The first cold snap we had the temperature dropped to 35 on the first floor. My HVAC guy checked it out and found that my furnace was dead and not capable of burning any propane.