With just a month ago until a federal tax credit for energy-saving products expires, Maine residents are being urged to make weatherization improvements on their home before Dec. 31.

The tax credit covers 30 percent of the purchase price and installation costs of items such as insulation, energy-efficient windows and doors, and high-performance furnaces and wood stoves. Households can get up to a total $1,500 in efficiency tax credits for 2009 and 2010.

To receive the credit, improvements must be made to a current, primary residence before the end of 2010.  Products must meet certain efficiency standards to qualify, listed at energystar.gov.  To claim the credit, homeowners must have a receipt and the Manufacturer’s Certification Statement of efficiency, and fill out IRS Form 5695 on their tax return.