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Avista rebates for furnaces, heat pumps and thermostats
Utility rebates can take a real bite out of a heating upgrade, but only if the equipment and paperwork match the program's rules. Here is what Avista's residential programs have covered and how to avoid losing a rebate on a technicality.
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NBy Nell Bradshaw, HVAC Guides Editor · Updated September 2026
Quick answerAvista's Washington residential rebates have included $300 for a gas furnace or boiler rated 90 percent AFUE or higher, $500 for replacing electric baseboard with a ductless heat pump rated 9.0 HSPF or better, $80 for a variable-speed blower motor, a smart thermostat rebate and electric-to-gas conversion combinations. Programs change, so confirm current terms before buying.
Programs change, so check first
Everything on this page comes from Avista's published residential rebate sheets for Washington and Idaho. Amounts and rules change, sometimes mid-year. Before you sign a contract, pull the current Avista rebate page for Washington or call Avista to confirm the program still exists and what it requires. The federal 25C efficiency tax credit ended after December 31, 2025, so utility programs are now the main incentive for most homeowners.
What Avista's rebates have covered
The residential sheet has listed rebates along these lines:
- High-efficiency natural gas furnace or boiler, 90 percent AFUE or higher: $300.
- Electric baseboard heat to a ductless heat pump, 9.0 HSPF or higher, with Avista electric as the primary heat: $500.
- Variable-speed motor on a primary central ducted heating system: $80.
- Smart thermostats that stay connected to home Wi-Fi.
- Electric-to-natural-gas conversions for space heat, with combination rebates when the water heater converts too.
- Insulation and window upgrades on existing homes.
Eligibility rules that trip people up
Conversion rebates have depended on past usage. Idaho's conversion rules, for example, required at least 4,000 kilowatt-hours of electric use and less than 340 therms of gas over the previous 12 months, and Washington's sheet carries similar usage language. Most rebates are for existing homes only, require Avista service for the fuel being saved and require installation by a licensed contractor.
The invoice must show the equipment's efficiency, usually as an AFUE or HSPF figure, or include the AHRI certificate. A missing efficiency number on the invoice is the most common reason a rebate is delayed.
Want the equipment checked against the current rebate before you buy?
Call (509) 404-0016Matching equipment to the program
Buy to the rule, not near it. A furnace at 89 percent AFUE misses a 90 percent requirement, and a ductless unit below the HSPF threshold does not qualify for the baseboard conversion rebate. Ask the installer for the model's certified ratings before the order is placed. When we quote a furnace replacement, ductless installation or gas conversion, we check the equipment against the current program.
Getting the paperwork right
Keep the contractor invoice, model and serial numbers, the AHRI certificate if the invoice lacks the efficiency rating, and photos of the installed equipment. Some programs ask you to pre-qualify by calling Avista before the work. Submit within the program's deadline, which is usually counted from the installation date.
Stacking with other savings
Rebates are one piece. Right-sizing the system, sealing leaky ducts and setting the thermostat correctly often save as much over time as the rebate itself. A smart thermostat set up for your equipment helps with both the rebate and the bill. For the bigger decision between systems, read heat pump or gas furnace.
More Spokane heating and cooling guides
Rebate questions
Are these rebate amounts current?
They come from Avista's published sheets. Confirm with Avista before buying, since programs change.
Can I get a rebate on a replacement in a new home?
Some rebates are for existing homes only. Check the program terms.
Who submits the rebate?
Usually the homeowner, with the contractor's invoice and documentation.
Is there still a federal tax credit?
The federal 25C credit ended after December 31, 2025.
Do smart thermostats qualify?
Avista has offered a rebate for qualifying thermostats that stay connected to home Wi-Fi.
Buy equipment that qualifies.
Call for a quote in Spokane, WA, with the rebate checked.
