If your furnace looks like this, you might be eligible for up to $4,000 toward a new energy efficient model. For a limited time, Mass Save is offering generous rebates for replacing inefficient boilers and furnaces with more energy efficient heating equipment.You may be eligible to receive a rebate up to $4,000 for replacing a 30+ year old boiler or up to $1,000 for replacing a 12+ year old furnace. To find out more and schedule a no-cost Mass Save site visit, call 866-527-SAVE (7283) through August 31, 2015.