Why does the heating package not heat the house?

1- Low Package Pressure; One of the reasons for the heating of the heater

Why not warm the heater package? The flame of the package is not appropriate

2- Forming of sediment in heating pipes and packages; One of the reasons for the heating of the heater

1- Radiator Fittings Development; Cause

2. "Why doesn't the heating package warm?" Due to the impaired radiators' ventilation

2- Low water pressure building; The reason for not heating the heater