When central heat unit kicks on it starts blowing right away. Which is cold air and then the hot air comes on after a little bit
Normal. That's why people use hot water baseboard heating systems. Forced air is uncomfortable, but cheap to operate. Where did you think the air that is sitting in the ducts going to go? It has to be blown out by the heated air from the plenum. Think. Polar bear is an idiot. It doesn't matter what heats the air, electricity, oil, or gas, the effect will still be the same. The cool air in the ductwork needs to be blown into the room for the heated air to come through. Just common sense. Next time buy a house with a boiler.
That is a natural characteristic of electric heat..... the reality is that the duct work holds that cool air in suspension, then when the blower fan starts, the heat strips must get hot (which only takes slightly less than 15 seconds) for that air to become warm. if this is gas heat then you need a tech out there first thing tomorrow. The inducer fan for some reason is either not running or the fan switch really needs to be re calibrated, or is failing on temp delay. On gas furnaces the heat exchanger must get hot before the blower fan is supposed to energize... (edit) Since the duct work is the same in both electric and gas systems, it stands to reason that same cool air has to be displaced by warm air. Instead of thinking YOU are an idiot or calling another poster an idiot, I figured you were smart enough to extrapolate that...... The reality is that gas systems will displace that cool air much better; the air from an electric furnace is only 87 to 92F, the gas furnace will produce 130 degree air all day long. An idiot wouldn't know that. Its a shame mg couldn't point that out.... It must be a real joy working with mg..... not
