Two-Stage Furnaces: Maximizing Comfort & Efficiency
Why Two-Stage Furnaces Matter for Comfort and Efficiency Two-stage furnaces heat at two output levels: a lower comfort stage for everyday demand and a high stage that steps in during very cold weather. In our experience, they spend most of their time in the lower stage, delivering gentler, longer heating cycles instead of the stop and go bursts common with single-stage units. That steadier approac ...