The air circulation journal 334

September 24, 2026

Diagnosing HVAC Airflow Problems in Rooms That Won’t Cool

A room that stays stubbornly warm while the rest of the house feels fine can be maddening. The thermostat says the system is running, the vents are blowing air, and yet one bedroom feels like it belongs to a different zip code. I have seen this problem in older houses, new builds, condos, and especially in hot rooms Florida homeowners deal with during long cooling seasons. The complaint is usually the same: rooms stay hot with AC running, and nobody can explain why. The

September 24, 2026

Static Pressure in HVAC: A Homeowner’s Guide to Better System Performance

Most homeowners think about HVAC performance in terms of comfort. Does the house cool down fast enough? Does the furnace keep the bedrooms warm? Does one room always feel stuffy while another feels fine? Those are the symptoms people notice. Static pressure is one of the hidden conditions behind them. If airflow is the bloodstream of a heating and cooling system, static pressure is the resistance that blood has to push through. Too much resistance and the system works ha