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Questar Gas - Residential Energy Efficiency Rebate Programs

Multi-Family Residential
Maximum Rebate 

Limit of two rebates per appliance type

Program Info
Start Date 


Program Type 
Utility Rebate Program
Rebate Amount 

Gas Furnace: $200 - $400
Gas Storage Water Heater: $50-$100
Gas Condensing Water Heater: $350
Gas Boiler: $400 -$600
Tankless Gas Water Heater: $350
Clothes Washer: $50
Windows: $0.95/sq. ft.
Insulation (Wall): $0.30/sq. ft.
Insulation (Floor): $0.20/sq. ft.
Insulation (Attic): $0.07 - $0.25/sq. ft.
Duct Sealing/Insulation: $100 + $5.25/ln. ft.
Air Sealing: $100 + $.20/sq. ft.
Programmable Thermostat: $30
In-Home Energy Audit: Discounted to $25

Questar Gas

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.

Other Information 

High Performance Homes: Exceed the 2006 International Energy Conservation Code (IECC) by at least 50%. Rebate only available to single family properties
Gas Storage Water Heater: Must be Energy Star, EF 0.62 or higher (minimum 40 gallons, 75,000 Btu/hr or less)
Gas Condensing/Hybrid Water Heater: EF. 90 or greater; TE 90% or greater
Tankless Gas Water Heater: Must be Energy Star, EF 0.82 or higher
Gas Furnace: AFUE 90% or higher
Gas Boilers: AFUE 95% or higher
High Efficiency Clothes Washer