as far as i know all the heater + a/c pipes are blocked off they were like that when i had it for whatever reason i dont know, there is a harsh but effective alternative, if ya lift the bit of rubber down at the gearstick it blows in hot air from the engine lol its funny but it works, the cabin be warm in no time, hows that clutch going for ya? bit of a cunt isnt it used to be a bastard in traffic or hill starts,

btw removing one of the fans is a load of waffle, dosnt have any effect on the heators at all