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Responding to Google reviews within 24 hours boosts local rankings and earns 35% more revenue. Learn the system HVAC contractors use to build trust fast.
A2L inverter equipment is failing inspections over wire sizing. Here's why traditional LRA rules don't apply and how to defend your install with NEC 440.
Heat pump efficiency drops as temperatures fall. Learn the real COP numbers, when gas beats electric, and how to explain cold weather costs to customers.
Variable speed scrolls offer precise capacity control, vapor injection for cold climates, and unmatched efficiency.
Leak detectors, recovery machines, manifolds: what actually needs upgrading for R-454B and R-32? The practical checklist for 2026.
