Heat Pump Water Heaters on Battery Backup: Sizing, Recovery Rates & Hybrid Modes
Water heating represents roughly 18% of an average home’s total energy footprint, ranking directly behind space heating and cooling as the largest continuous residential electrical draw. Traditional electric storage water heaters rely on dual resistive heating elements that demand 4,500W to 5,500W continuously. Running a standard resistive tank on an emergency battery backup will drain … Read more