Questar Gas - Residential Energy Efficiency Rebate Programs (Idaho)

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Last modified on February 12, 2015.

Financial Incentive Program

Place Idaho

Name Questar Gas - Residential Energy Efficiency Rebate Programs (Idaho)
Incentive Type Utility Rebate Program
Applicable Sector Multi-Family Residential, Residential
Eligible Technologies Boilers, Building Insulation, Duct/Air sealing, Furnaces, Programmable Thermostats, Water Heaters, Windows, Tankless Water Heaters
Active Incentive Yes
Implementing Sector Utility
Energy Category Energy Efficiency Incentive Programs
Amount Furnace: $200-$400

Solar Assisted Water Heater: $750
Storage Water Heater: $50-$100
Gas Condensing/Hybrid Water Heater: $350
Tankless Water Heater: $300-$350
Boiler: $400 - $600
Solar Hot Water Heater: $750
Gas Clothes Washer: $50
Direct Vent Gas Fireplace: $200
Windows: $0.95/sq. ft.
Insulation: $0.07-$0.30/sq. ft.
Duct Sealing/Insulation: $100 + $5.25/ln. ft.
Programmable Thermostat: $30
In-Home Energy Audit: Discounted to $25

Equipment Requirements Furnace: AFUE 90%

Solar Assisted Water Heater: SRCC OG-300
Storage Water Heater: EF .62
Gas Condensing/Hybrid Water Heater: EF .90
Tankless Water Heater: EF .82
Boiler: AFUE 85%
Solar Hot Water Heater: $750
Gas Clothes Washer: MEF 2.6
Direct Vent Gas Fireplace: AFUE 70%
Windows: U-Value of 0.30 or lower
Insulation: must attain certain R-level improvements
Duct Sealing/Insulation: Questar Gas 2011 Duct Sealing and Insulation Specification

Installation Requirements Insulation must be installed by a program approved ThermWise Authorized Contractor.

Maximum Incentive Limit of one rebate per appliance type

Duct Sealing/Insulation: $450 (Single Family); $250 (Multifamily)


References Database of State Incentives for Renewables and Efficiency (DSIRE)[1]


Questar Gas provides rebates for energy efficient appliances and heating equipment, and certain weatherization measures through the ThermWise program. This equipment includes clothes washers, water heaters, furnaces, boilers, windows, insulation and programmable thermostats. A reduced-cost home energy audit is also available to participating customers. To qualify, the appliances must run on gas and must meet the minimum efficiency levels stated on the program web site. The web site also maintains a list of appliance models which meet the requirements and local vendors who sell them. Certain equipment must be installed by an authorized ThermWise contractor. Follow all instructions on the program application and see terms and conditions for other program details.

Incentive Contact

Contact Name ThermWise Appliance Rebates
Department Questar Gas

Phone (800) 323-5517


  • Incentive and policy data are reviewed and approved by the N.C. Solar Center's DSIRE project staff.[1]


  1. 1.0 1.1  "Database of State Incentives for Renewables and Efficiency (DSIRE)" Cite error: Invalid <ref> tag; name "DSIRE" defined multiple times with different content