As of last January, homeowners are eligible for a 30 percent federal tax credit for energy-efficient upgrades and purchases on everything from Windows and insulation to HVACs and biomass stoves.

从今年1月份起，任何对住宅进行能源效率升级或采购的业主，都有资格获得30%的联邦税务减免，范围涵盖从窗户、隔热材料到暖通空调及生物燃料炉的各种设备。

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