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Mini-split operating cost calculator
Estimate only. The default 1,000 cooling and 1,500 heating full-load hours are placeholder assumptions for illustration, not data; replace them with values for your climate (your utility or installer can help). Formula: kWh = capacity × hours ÷ (rating × 1,000). Seasonal ratings come from DOE test conditions (10 CFR 430 Appendix M1); real use varies with climate, sizing and settings. Rates: EIA July 2026 (preliminary).