It doesn't really blow it out it just warms the cold air.
the heater core was stopped up just flushed it out ok now
Your heater will blow cold air only.
The front expansion valve is clogged.
it wont blow heat itll blow cold air
you are low on coolingliquid !
THE CAUSE for this is that when your cold air is on the petrol is used to create air. and that is how cars create cold air
No, not if it's on a heat setting. Most home thermostats have a "Fan" setting that will blow cold air if the attic is cold.
It depends on the type of heater you have. It may be maintaining the room temprature or it may be warming up ( just like how air conditioners start hot )
The heater may blow cold air instead of warm air due to issues such as low coolant levels, a malfunctioning thermostat, a clogged heater core, or a faulty blend door. These problems can prevent the heater from properly warming the air before it is blown into the car.
heater core possibly plugged and leaking
No! Thermostat.