MILTON Officials wanted to replace two 58-year-old boilers at Milton High School but couldnât fit the cost into the 2019 referendum. But new boilers are now a part of the ongoing high school expansion project, which will mean better air for staff and students, thanks in part to federal COVID-19 relief funding for schools. The school board on Monday approved using part of Miltonâs allotment from the American Rescue Plan Elementary and Secondary School Emergency Relief Fund, known as ESSER III, for the work, not to exceed $560,000. ESSER III would contribute $424,000 to the boiler project. The rest would come from contingency funding from the referendum, money the board approved last fall to replace circulating pumps.