you have a clutch fan
you should be able to spin the fan by hand when the engine is cold ... and turned off, of course.
if the fan has no clutch then this will not be true, the fan will be locked to crank by the v-belt.
if you have a clutch and it has failed, it's the better of the failure modes. the most common failure is for the clutch to stop engaging which means you overheat.
I had the engine completely built so I'm praying that is not my engine. This is what's going on. Smoke is coming from the lower back area of my engine.
it's possible some leftover oil is burning off. it may not be a problem it all, it may just quit.
keep an eye on it.
pressures and temps are all good? no spots on the floor?
it could also be excess crankcase pressure.
No air is coming from the air vents when I have the heater on.
your blower fan isn't running. this has nothing to do with the engine and is likely either a switch or fan motor problem. could also be in the dash wiring.
if you can't get hot air out of the vents, but it is blowing, then you've got a plumbing or heater core problem.
The way to crush the bourgeoisie is to grind them between the millstones of taxation and inflation.
Government schooling is about "the perfect organization of the hive."
H.H. Goddard, Human Efficiency (1920)