This low setting provides sufficient heat to reach the desired temperature without the intense blast of air associated with older systems, eliminating hot and cold spots throughout the home. The burner ignites at maximum capacity while the blower increases its speed to deliver a powerful surge of hot air.
Two Stage Furnace Versus Traditional Models: Efficiency and Performance Explained
During milder weather or when the thermostat calls for a small amount of warmth, the system runs in the low-fire stage. In contrast, a two-stage furnace functions more like a dimmer switch, providing a balance of power and silence.
The Core Principle of Modulation The fundamental answer to how does a two-stage furnace work lies in its ability to adjust heat output. Low-Stage Operation for Efficiency When the furnace enters low-stage mode, it consumes less energy while still delivering a steady stream of warmth.
Two Stage Furnace Versus Traditional Models: Efficiency and Performance Differences
This results in loud operational noise and temperature swings of several degrees. High-Stage Demand for Extreme Cold As outdoor temperatures plummet, the heat loss from your home increases dramatically.
More About How does a two-stage furnace work
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