What is a Modulating or Two-stage furnace?
Modulating Furnace Most furnaces are either “off,” providing no heat, or “on” at full capacity, with the burner and blower operating at 100 percent. This causes the temperature in your house to go up and down by several degrees – affecting both your comfort and your energy bills. Furnaces are designed to keep your home warm on the coldest of days. But in most cases, those days account for only 2-1/2 percent of the heating season. The rest of the time, your furnace is providing more heat than is needed to satisfy your comfort requirements. Modulating furnaces solve this problem by “modulating” between different capacities (40-100%), depending on the comfort requirements of the homeowner and the temperature outside. This results in lower operating costs, quieter operation and much more even temperatures throughout the home. It`s like having a separate furnace to handle the unique heating requirements of each day – all in one unit! Two-stage Furnace A two-stage furnace has the same concep
