Building Insulation: Varies, see website for details
Windows: $1.75 - $4.00
Duct Insulation: 50% of cost, up to $100
Sealing Air Leaks: $150/structure
Smart Thermostat: $50
Gas Furnace: $100 - $200
Heat Pumps: $250 - $700
Heat Pump Optimization: $150
Heat Pump Lockout Controls: $150
Ductless Heat Pumps: $800/home
Heat Pump Advanced Controls: $50(self instal), $150(professional instal)
Direct-Vent Gas Fireplace: $150 - $250 (plus an additional $100 if he fireplace is installed by May 31, 2016)
Direct-Vent Gas Unit Heater: $100
High-efficiency Gas Boiler: $200
Boiler Pipe Insulation: $0.50 per linear foot
Gas Tank Water Heater: $100 (professional install)
Incentives Paid Directly to Contractor
Attic insulation: $0.50 per sq. ft.
Wall insulation: $0.50 per sq. ft.
Floor Insulation: $0.40 per sq. ft.
High-efficiency Heat Pump Upgrade: $550 - $1,000
Ductless Heat Pump: $1,000
High-efficiency Gas Furnace: $550
Energy Trust of Oregon administers energy efficiency rebate programs for both residential and commercial customers of NW Natural in Washington. Interested customers can see the program website listed above for more details. Residential customers must follow all NW Natural procedures in applying for rebate.