I usually smell gas near my LP tank outside. Typically I can begin to smell it when I am 5-10 feet away, and I always smell it when I am standing at the tank. I have lived in this house for 3 years and have asked the gas company on several occasions about this. I am always told that it is normal to smell gas near the tank. I have very high heating bills despite keeping the thermostat below 64 degrees and have done everything to minimize air leaks in my house. Is this leak near the tank normal?