losing coolant, water coming from a/c drain hole in the firewall allot leaving a big puddle even when i dont drive but a couple blocks, heater stillworking in car, no coolant smell

What makes you think it is engine coolant ?? The reason it is colored is so it can easily be identified! Plus the fact the coolant level would be dropping.. You worry too much!

Hello, sounds like normal condensation draining from the air conditioning system. The water absorbed during the process of cooling your vehicle must be drained somewhere, and under the car is where it goes.