1000 Gallon Propane Tank Heater: Cold weather tends to be hard on propane tanks. When the temperature drops, it’s very difficult for propane tanks to maintain optimal pressure. Low pressure prevents the gas from vaporizing, which in turn makes your tanks unusable. Powerblanket® offers propane tank heaters for a wide variety of tank sizes. Powerblanket propane tank heaters provide a uniform barrier of heat across the entire tank. Our superior heating solution reduces costs by optimizing temperatures and increasing propane tank efficiency. Oil and gas companies have found that propane tanks are a crucial component in the frac water heating process. As with all propane tanks, they lose pressure in cold weather. This reduces the efficiency of the frac water heating process. One solution to maintain pressure is to heat the propane tank on the frac water heater.