Technician found cracks and holes in the flue pipe, these defects can cause carbon monoxide to leak into the home. The system was completely empty of refrigerant, causing the system to not work in cool mode. A leak search will be needed to quote proper repairs for the system. The Static Pressure is too high on the supply side. This means that there is a lack of airflow for the system. This is caused by the combination of the dirty evaporator coil and the improper sizing of the ductwork on the supply side. There is a lack of combustion air in the basement, this would be addressed by adding a combustion air intake into the basement. A lack of combustion air will cause the furnace to have incomplete combustion causing carbon monoxide production, unstable flames, poor heating, and energy inefficiency. The blower wheel and condenser coil are also dirty. This will cause the unit to operate under stress causing higher power consumption and a lower life expectancy of the system. The syst