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UpgradeEquipment TypeEnergyStar ZoneFuelFixed CostFixed Cost UnitVariable CostVariable Cost Unit
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Attic insulation$0.15/sqft $0.042/sqft-R
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Floor Insulation$0.61/sqft$0.019/sqft-R
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Roof absorptivity$0$0.00/sqft
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Roof sheathing$0$0.50/sqft
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Wall insulation$0$2.36/sqft
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Wall sheathing$0$1.30/sqft
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Skylight replacementNorthern$0$79/sqft
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Skylight replacementNorth central$0$79/sqft
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Skylight replacementSouth central$0$79/sqft
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Skylight replacementSouthern$0$18/sqft
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Window replacementNorthern$0$5/sqft
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Window replacementNorth central$0$6/sqft
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Window replacementSouth central$0$2/sqft
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Window replacementSouthern$0$12/sqft
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Foundation wall insulation$0.77/sqft$0.18/sqft-R
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Envelope sealing$0.09/sqft$1.74/sqft-%
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Duct insulation$1.00/sqft duct$0.05/sqft-R
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Duct sealing$0$4.10/sqft-%
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Heating efficiencyCentral furnaceNorthernNatural gas$0$8.00/kBtuh
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Heating efficiencyCentral furnaceSouthernNatural gas$0$4.00/kBtuh
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Heating efficiencyCentral furnaceNorthernFuel oil$0$3.00/kBtuh
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Heating efficiencyCentral furnaceSouthernFuel oil$0$3.00/kBtuh
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Heating efficiencyCentral furnaceNorthernLPG$0$17.50/kBtuh
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Heating efficiencyCentral furnaceSouthernLPG$0$10.00/kBtuh
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Heating efficiencyBoilerNorthernNatural gas$0$7.00/kBtuh
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Heating efficiencyBoilerSouthernNatural gas$0$7.00/kBtuh
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Heating efficiencyBoilerNorthernFuel oil$0$10.00/kBtuh
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Heating efficiencyBoilerSouthernFuel oil$0$10.00/kBtuh
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Cooling efficiencyCentral AC$0$9.44/kBtuh
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Cooling efficiencyWindow AC$98/unit$2.55/kBtuh
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Heat pump efficiency$0$12.00/kBtuh
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Replace electric furnace with HP$370/unit$21.00/kBtuh
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Replace electric baseboard with HP$1,740/unit$33.00/kBtuh
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Water heater efficiency$40/unit$1.00/gallon
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Heat pump water heater$1,350/unit-$1.90/gallon
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