Vermont now has a program offering a $1,000 rebate for bulk fed pellet boilers. For more information: http://www.efficiencyvermont.com/ for_my_business/ways-to-save-and-rebates/hvac/rebates/all_rebates.aspx.
PACE financing provides loans for home energy improvements including biomass in some municipalities. The loan is typically repaid via a special property assessment over a 20-year period.
Incentive specifics available here:
http://www.dsireusa.org/incentives/incentive.cfm?Incentive_Code=VT38F&re=1&ee=1