Heating Assistance Rebate Program (HARP)  Apply between October 16, 2017 and March 31, 2018. The Heating Assistance Rebate Program (HARP) helps with the cost of home heating for low-income Nova Scotians who pay for their own heat. Rebates range from $100 to $200. You can apply between October 16, 2017 and March 31, 2018. Eligibility