Continued bitter cold has forced an Iowa utility to again revise estimatesfor what it’ll cost Iowans to heat their homes this winter. John Ruff isspokesman for Alliant Energy in Cedar Rapids. Ruff says natural gas willcost the average customers from 350 to 450 dollars more than in pastwinters. He explains why the prices for the precious home heating fuelcontinue to bound. Ruff says Iowa homeowners can’t seem to get a break.While Iowa’s gotten more snow this month than in any other month on record,it’s also going down as one of the coldest months since 1983.