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NW Natural (Gas) - Residential Energy Efficiency Rebate Program

Maximum Rebate 

Air Sealing: $275
Duct Sealing: $325
Duct Insulation: $100

Program Info
Program Type 
Utility Rebate Program
Rebate Amount 

Air/Duct Leakage Test: $35
Air/Duct Sealing: 50% of cost
Duct Insulation: 50% of cost
Windows: $2.25 (U-Value 0.26 - 0.30) or $3.50/sq. ft. (U-Value 0.25 or less)
Window Installation Bonus: $100
Attic/Ceiling Insulation: $0.25/sq. ft.
Floor/Wall Insulation: $0.30/sq. ft.
Knee wall/Rim Joist Insulation: $0.30/sq.ft.
Trade Ally Contractor Insulation Installation Bonus: $150
Boiler Pipe Insulation: $0.50/ln. ft.
Furnace: $100
Direct Vent Unit Heater/Fireplace: $100 - $250
Boiler: $200
Water Heater: $35 or $150 (gas) or $200 (tankless)

Energy Trust of Oregon

Energy Trust of Oregon administers energy efficiency rebate programs for both residential and commercial customers of NW Natural in Washington. Energy Trust is awarding the rebates and providing resources and technical assistance to interested customers. To be eligible for the residential rebate program, customers must own a home in Washington and the home must primarily be heated with gas. A variety of energy efficiency improvements are eligible for rebates, including, insulation, windows, air and duct sealing, tankless water heaters, and furnaces. After completing weatherization measures (insulation and sealing), customers can receive a $100-$150 bonus cash incentive. With the exception of water heaters, floor and ceiling insulation, all equipment must be installed by an Energy Trust contractor or a Washington-licensed contractor. For more information on efficiency requirements and exact rebate amounts, see the Washington Incentive Grid.

Other Information 

Varies by efficiency measure; a list of equipment efficiency requirements is located on the program web site
Furnace: 90% AFUE or greater
Direct Vent Unit Heater: 80% AFUE +
Boiler: 88% AFUE +
Tankless Water Heater: .80 EF or better
Storage Water Heater: .62 - .66 EF for $35 incentive; .67 EF or greater for $150 incentive