This measure has been evaluated for cost-effectiveness at time of replacement only—meaning the analysis assumes the equipment or material (like a roof or water heater) is already being replaced for other reasons. The cost shown reflects only the incremental cost of upgrading to a higher-efficiency or alternative system, not the full cost of installing it as a standalone project.
Please proceed with caution if you intend to make this measure mandatory outside of replacement scenarios. Cost-effectiveness cannot be assumed in those cases.