Signature Heating and Air takes the guess work out of sizing furnaces. The heat loss is used to size a furnace to heat the home. We take the extra time to bid the job accurately. A furnace that's too small won't keep the house comfortable during extreme cold. Partly to avoid that possibility, contractors sometimes sell furnaces that are too large for the home they're installed in.
Cost is only one of the problems with such a unit.
Compared with a correctly sized furnace, a furnace that's too large will cycle on and off more frequently. That puts more wear on its components, wastes energy, and may cause the temperature to vary uncomfortably. Also, upgrading to a larger furnace may require the installation of bigger ducts to accommodate the increased airflow. J. Such calculations take into account the climate, along with the house's size, design, and construction. The spent gas is then discharged into a 4 inch round duct called the flue and the gas is emitted out the roof of your home.