heater controls

Hi Guys, after a busy few months i have started to work on the Pao again. Whilst operating the heater controls i noticed with the heater on "hot" and sliding the knob to feet and defrost it was toasty warm but on the face setting it was cold. Now i had this on one of my other cars years ago and it was just part of the design. Is it the same here?
cant answer your question but good to see you back on here pal, i keep coming on here to look at your welding pictures to give me confidence (i did have a bash at welding a panel but it didnt quite go to plan so i need some more practice i think)
Thanks feeenix ,i am glad the weldings finished. You are right ,pratice is the key,also prep your metal really well and keep your joints tight.