EL Heater being weird

Hey all.
          Got an EL Futura and the Heater takes forever to change to upper
body heat, everything else is fine except this only on HEAT. now i
replaced the control unit on the dash and the Vacuum hoses to the
firewall, they are fine. the hoses under the bonnet are fine. Does anyone
know if it is or could be in the firewall that goes through, or what is in
there, when i turn the car on to accessories it makes a sound like your
running yours fingers around an inflatted baloon, the squecky grinding
noise, any help would be great.
DILLIGAF