Energy Trust recommends high-efficiency gas furnaces that are 90 percent AFUE, or greater. You may qualify for state and federal tax credits. There is no longer an Energy Trust incentive for gas furnaces (as of May 1, 2010).
Oregon Residential Energy Tax Credit: Up to $350
Furnace must meet Oregon tax credit criteria. See Oregon Department of Energy or your tax accountant for complete details.
Federal energy tax credit: Up to $150. See rules and requirements.
Manufacturer rebates
Ask your contractor about rebates that can save you even more money.