I d have a/c but no heater . I have air coming out no hot air . Help me with my 1991 Honda Accord lx coupe

What is your question?

When I turn on the heater the air is still cool when the car is warm up .1991 Honda Accord lx

What makes this problem better or worse?

Nothing

How long has your 1991 Honda Accord had this problem?

Sense I got the car