The Mass Save速 Heat 0% Loan Program, operational since 2006 and made permanent in 2008, has successfully financed over $131.7 million in energy efficiency improvements with an approval rate of 60-90%. By offering accessible loans of up to $25,000 for residential customers, the program addresses financial barriers to upgrading heating systems and enhancing energy efficiency. Key eligibility criteria include having a residential account with participating utilities and completing a home energy assessment.