Insufficient heat from '95 Saturn SL1 heater

#1

Our 1995 Saturn SL1 is not providing enough inside heat to the driver and passengers. Engine temperature gauge was reading low and I changed the thermostat. Gauge is now reading in the normal operating range. Blower fan is working normally but there is not enough heat coming out. Upper and lower radiator hoses are hot. Any suggestions on what I should do to get more heat?

#2

This is not the “repair and maintenance” section. You have some replies to your post there. No need to duplicate.