Mass Save and your local utility company have programs available to help homeowners, like you, upgrade your home’s heating system, cooling system and domestic hot water systems with energy efficient equipment. Heat Loans and Utility rebates for eligible system upgrades are available, and Aspinwall Plumbing & Heating can help. The program is sponsored by the electric and gas utility companies to help homeowners save energy and money. These residential rebates lower costs for HVAC equipment, water heaters, and other home upgrades. The process all starts with a Home Energy Assessment.