The D.C. Department of Housing and Community Development has received two grants totaling $345,850 to weatherize homes for low-income city residents.

Weatherization improvements include the installation of weather stripping, caulking, attic insulation, storm windows and minor structural repairs.

An estimated 355 households may be weatherized at an average cost of $1,000 through the grants for the current fiscal year, according to a department spokesman. It is estimated that weatherization improvements could result in an average of 25 percent savings in energy, or about $225 for each household during the heating season.

Households to be weatherized include owner-occupied units, tenant-occupied units and public housing units occupied by persons whose incomes are at or below 125 percent of poverty level. The maximum income is $4,250 for a single person and $8,375 for a family of four. Priority is to be given to eligibly elderly and handicapped persons.

Under the program, legal assurances must be provided by landlords that rents will not be increased due soley to weatherization improvements on their property.

Part of the grant allocation also will be used for training and technical assistance.

The funds were provided by the federal Department of Energy under the Weatherization Assistance for Low Income Persons program.