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The Iowa Utilities Board says now is an “ideal time to weatherize your … home” with low-cost air leak solutions such as caulk and weather-stripping materials. Alliant Energy serves the Washington County area.  Spokesman Justin Foss says gas heating customers can qualify for a free home energy audit to examine insulation levels and others ways to save money this winter.  Foss also recommends having your furnace inspected and says customers can also receive a $30 credit to offset servicing costs that normally run $50 to $100.  For more home weatherization tips, visit energystar.gov ^[2].