Arlington's Rethink Energy team is offering home energy rebates for up to $575. The approved projects along with the Federal Tax Credits are as follows: $250 rebate - Water heaters (Federal Tax Credit = $300) $575 - Central air conditioners (Federal Tax Credit = $300), furnaces (Federal Tax Credit = $150), boilers (Federal Tax Credit = $150) and heat pumps (Federal Tax Credit = $300)...