Blew the alternator in my 1994 Honda accord and replaced it. Now fluid isn't circulating to the bottom hose?

We replaced and and checked to see if the fluid is circulating and it isn't. And Heater is also not working as good. What could the problem be?

Your alternator has zero relation to the operation or integrity of your vehicle's cooling system. Simply no correlation whatsoever.

Alternator not withstanding, it sounds as though you have a thermostat issue.

That should have nothing to do with a blown alternator unless you failed to fit the belt properly

Check the water pump isn't seized

Check fluid levels.

Check for airlocks

Check the thermostat.