Furnace installation is not a child's play. It may seem easy at first, but it has many details that furnace owners are unaware of.  Some details that furnace owners often overlook include the area of the house, the number of windows and rooms, the number of heat-generating appliances and their usage frequency, the insulation levels of the house, and the condition of the ductwork.  The installation of a new furnace revolves around these details and calculations.  Since not all furnace owners can accurately pin down these details, it is always better and more convenient to contact a heating repair near me to do the tedious task instead.