[QUOTE=Baratacus;269885]On my samurai, the heat will come out the floor vents or it will come out the defroster vents by the windows (slots at the top of the dash and on the sides corners of the dash) The round vents only blow cold air and will not route it over the heater core. The defroster vents are supplied hot air by two ducts that run up either side of the bottom heat exchanger. You can take those two lines and plumb them to the round vents so that the round vents operate with the defroster vents, but it won't blow very hard since it's dispersing the air through so many openings.[
Baratacus your input is always helpful thank you..that is the way that i thought just like you said but i wasnt 100 percent sure.You also said that the round vents blow "cold air" as in just outside temp air? I dont think i would ever use it as a "fan" blowing outside air in i would rather just open the windows, wouldnt you?...since i rather use a heater on cold night expeditions that would be cool if i could route the heat exchanger hoses to connect to the round air vents but i understand that there wouldnt be much force of hot air blowing through the vents.. baratacus i have another question that you may or may not be able to answer..behind the glove box on my samurai 1988 there is no big black box..on my parts samurai that is completely stripped with no dash 1988.5-86 there is a big black box that i have no idea what it is? it is connected to some other black long box that is up above and is routed to the vents behind the hood/slotted..what is it? it had clips around the middle and im guessing there is some kind of filter inside? did this samurai possible have factory air conditioning?