What Is The Difference Between A Stage 1 And Stage 2 Furnace?
What Is The Difference Between A Stage 1 And Stage 2 Furnace? The difference between one-stage and two-stage furnaces is in how the two operate. On stage furnaces operate at 100% power when running, whereas two-stage furnaces constantly operate at 60-70% power, only increasing to 100% operating power when signaled by an extreme shift in