Homeowners struggle to protect expensive electronics from power surges across distributed electrical systems

Homeowners with sub-panels or long-distance electrical runs don't know if single surge protection at the main panel is sufficient, leaving expensive appliances, HVAC systems, and electronics vulnerable to damage. Current surge protection guidance is unclear about multi-point protection strategies, forcing DIYers to guess whether additional protection devices are necessary and where to install them. This uncertainty leads to either inadequate protection (risking costly equipment failure) or unnecessary spending on redundant devices.