I see you are in Ca....this may help.
California:
Yolo/Solano County, Sacramento, Santa Clara, and Truckee all regularly offer rebates for the replacement of an old wood burning stove with an EPA-certified unit or one that burns natural gas, propane, or pellets. Other lesser known programs are available in Placer, El Dorado, Shasta, and Butte Counties. Incentive specifics available here:
http://www.epa.gov/woodstoves/changeout.html#links
California provides local rebates in some areas for removing old, non-EPA compliant stoves in several counties, particularly in the Bay Area.
Marin County- $250 rebate for removing non-compliant woodstoves, fireplaces and inserts that are destroyed. Rebate can be used towards an EPA Phase II wood, pellet, or gas stove.
Yolo County- $200 rebate for replacing a non-certified wood burning stove or insert with a natural gas, propane, pellet stove or EPA certified wood stove.
Sacramento County- $200-750 for Environmental Justice-area residents and $75- 450 for non-Environmental Justice-area residents replacing existing uncertified wood stoves, inserts, or open hearth fireplaces with an EPA-certified stove.
Del North/Humboldt/Trinity Counties- Residents can apply for assistance when replacing a non-EPA certified wood heating appliance with an EPA certified appliance.
Incentive specifics available here:
Marin:
California Marin County - Wood Stove Replacement Rebate Program
Yolo:
Incentives10r
Sacramento:
Wood Stoves & Wood Fireplace
Del North/Humboldt/Trinity:
http://www.ncuaqmd.org/index.php?page=wood.stove