Custom Program

Save energy and money with high-efficiency gas technologies. NSTAR's Custom Program will pay up to 50 percent of the project cost for qualifying projects. Some of the covered technologies include:

• Desiccant dehumidification
• Condensing boilers and furnaces greater than 300,000 BTU
• Direct contact water heaters
• Combustion controls
• Double-effect absorption chillers
• Waste heat recovery

For more information, please contact us at 781-441-8592 or email efficiency@nstar.com.