coolant leak from evaporator
 

I have an '84 that the previous owner removed the air conditioning unit. I'm OK with that. Wondering if that removal is the reason no air comes out of the vents?

Also, the evaporator on passenger side occassionally has a small leak on to the floor board. Is that evaporator only needed if I have air conditioning? Does coolant need to run thru it?

After finding issue,. not sure of next stpes to fix???