Questar Gas - Commercial Energy Efficiency Rebate Program (Idaho)

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Last modified on February 12, 2015.

Financial Incentive Program

Place Idaho

Name Questar Gas - Commercial Energy Efficiency Rebate Program (Idaho)
Incentive Type Utility Rebate Program
Applicable Sector Commercial, Fed. Government, Local Government, Nonprofit, State Government
Eligible Technologies Boilers, Building Insulation, Clothes Washers, Custom/Others pending approval, Furnaces, Water Heaters, Windows, Food Service Equipment, Tankless Water Heaters
Active Incentive Yes
Implementing Sector Utility
Energy Category Energy Efficiency Incentive Programs
Amount Custom: $1/therm saved

Commercial Fryer: $500
Steam Cooker: $1,000
Gas Convection/Combination Oven: $500 - 1,000
Griddle: $300
Clothes Washer: $50-$75
Gas Water Heater: $50-$100 or $2/kBtu/hour input
Condensing Gas Water Heater: $350
Hybrid Gas Water Heater: $350
Tankless Gas Water Heater: $2/kBtu
Furnace: $200-$400
Boiler: $2-$3.25/kBtu
Direct Contact Gas Water Heater: $1.10/kBtu
Unit Heater: $1.25-$6/kBtu
Infrared Heating System: $5/kBtu
Boiler Outside-Air Reset Control: $250
Boiler Tune-up: up to $300
Gas Pack in Roof Top Unit: $5/kBtu/Hr input
Windows: $0.28-$0.37/sq. ft.
Attic Insulation: $0.04-$0.16/sq. ft.
Wall Insulation: $0.03-$0.12/sq. ft.

Equipment Requirements Equipment must run on gas and must meet stated efficiency levels

Gas Combination Oven: Minimum 40% cooking efficiency
Clothes Washer: MEF 2.0 and WF 6.0 for coin-op/laundromat models, MEF 2.6 for residential models
Gas Water Heater: EF .62 if less than 75,000 Btu/hr, 82% Thermal Efficiency if greater than 75,000 Btu/hr
Hybrid Gas Water Heater: 90% Thermal Efficiency
Tankless Gas Water Heater: EF .82 or 82% Thermal Efficiency
Gas Furnace: AFUE 90%
Gas Boilers (Steam and Hot Water): AFUE 85%
Direct Contact Gas Water Heater: 90% Thermal Efficiency
Gas Unit Heater: 83% Thermal Efficiency
Gas Pack in Roof Top Unit: AFUE 88%
Windows: U-value 0.30
Insulation: Increase by an increment of R-10

Maximum Incentive Custom: 50% of the eligible incurred project cost


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


Questar Gas provides rebates to its business customers for installing energy efficient food service equipment, laundry equipment, HVAC and water heating equipment, and certain weatherization measures. Some equipment rebates vary depending on the efficiency level of the equipment. Applications and more details are available on the web site listed above.

The ThermWise Business Custom Rebates Program is a demand-side management (DSM) program offered by Questar Gas with the goal of obtaining verifiable, cost-effective, and long-term natural gas savings. Program participants submit project proposals for a firm quantity of natural gas reduction through the installation of demand-side management measures. After installation, review and approval by Questar Gas, customers will receive $1.00 per therm saved up to 50% of the eligible incurred project cost.

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]


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