Heat Pumps in Georgetown's Climate: Generally Excellent
Georgetown TX's climate is nearly ideal for heat pump technology. Heat pumps work by moving heat from outdoor air into your home (or reversing to cool in summer). They're most efficient when outdoor temperatures stay above 35–40°F — which Georgetown's winters do approximately 85–90% of the time.
The average coefficient of performance (COP) for a modern heat pump in Georgetown's winter climate is 2.5–3.5, meaning it delivers 2.5–3.5 units of heat energy for every unit of electrical energy consumed. A gas furnace, by comparison, delivers 0.95–0.98 units of heat per unit of energy at best.
Defrost Mode: What It Is and Why It Runs
When outdoor temperatures drop below 40°F in Georgetown — especially on humid winter mornings when dew point is high — frost can form on the outdoor coil of a heat pump. This is normal. Your heat pump has a defrost cycle that periodically reverses operation (briefly switching to cooling mode) to melt this frost.
During defrost, you may notice:
- Steam rising from the outdoor unit — this is ice melting, not smoke
- The backup heat strips activating (the system heats with strips while the coil defrosts)
- Temporary reduction in heating output — usually 5–10 minutes
This is all normal. A heat pump that never shows any frost and never runs defrost in Georgetown winters may have a defrost control issue.
When Heat Pump Performance in Georgetown Is Not Normal
Running Continuously Without Reaching Setpoint
On Georgetown's coldest days (10–25°F, which occur a few times per year), a heat pump may struggle to maintain setpoint. This is normal behavior and why most Georgetown heat pump systems have a backup heat strip for emergency use. If the system can't maintain setpoint on a 45°F day, that's abnormal — low refrigerant or a reversing valve issue is likely.
Locked in Defrost Mode
A heat pump that runs in defrost mode continuously (you can tell because it's blowing cool air from vents in heating mode) has a defrost control or reversing valve problem. This requires a technician.
Heat Pump Only Running on Emergency Heat
If your thermostat's Emergency Heat light is on, the heat pump is bypassed and you're running only on electric resistance strips — expensive. Emergency Heat is for genuine emergencies only (heat pump component failure). Call us to diagnose the underlying heat pump problem.
🔧 ProAir Georgetown services all heat pump brands in Georgetown and Williamson County. Reversing valve failures, defrost control issues, and refrigerant problems are within our standard scope. Call {PHONE_DISPLAY} for same-day heat pump service.