In a February 24, 2021 article on tax breaks, lower home energy costs, and green projects, author Lisa Gerstner suggests:
Before you get started, consider investing a few hundred dollars in a home energy audit, performed by a pro who will identify problem areas in your house and suggest fixes. With a blower door test, for example, a powerful fan set in an exterior door frame lowers air pressure inside the house, causing higher-pressure air outside to stream in through the house’s openings so the auditor can spot leaks. Auditors may also use infrared cameras, thermometers and furnace-efficiency meters to detect areas that need improvement. You can find a certified auditor in your area through the Residential Energy Services Network at www.hersindex.com. Your utility company may offer energy assessments or rebates for having one performed.