What is a two-stage furnace?
A two-stage furnace, unlike a single-stage furnace, divides its heating process into two main phases. In stage 1, the furnace runs at about 65% capacity, saving energy when full capacity isn’t needed to keep your home warm enough. When the outside temperature dips below a certain point, stage 2 kicks in to provide further heating. This process can actually heat your home more evenly than a single-stage furnace, as well as improving your home’s overall energy efficiency and saving money. For this reason, two-stage furnace installation is usually a great choice for homeowners.