Heater Box Design - Lame?

[Dartswinger70]

What does the temp slider do on the OP's car?

Been a while since I had an A, but all my B's have that slider control a valve.

It opens and closes the door at the heater core. I think you can blend the hot air with cold to a desired temp. The other door is for floor/defrost or a blend of the two also. Real simple and cheap heater box.

 

[Jim Kueneman]

I love cars with real vents and "wing wings." I have never gotten used to those that dont. Only thing saves is AC. Hell up in these parts we never had an AC car until after I got out of the Navy in 74

All vents do in Arizona is turn the inside into a convection oven. Cooking you from the bottom up! Had it open for about 30 seconds, shut it and never used it again.

 

[Mike69cuda]

Auto parts stores sell shut off valves you can put in the heater hose. Used to be about $5.

 

[Lord Sparky]

I went with the Four Seasons valve, although I also like RustyRatRod’s model. I put it on the output hose where it wouldn’t drip on the engine as I read some complaints. The heater box is now room temperature (hoses still hot). Doesn’t look the greatest, but it works.

 

[Lord Sparky]

What does the temp slider do on the OP's car?

Been a while since I had an A, but all my B's have that slider control a valve.

Off/Temp low: flap into heater core and flap out of heater core closed.
Heat/Temp High: flap into heater core open and flap out of heater core wide open.
Def/Temp High: flap into heater core open and flap out of heater core wide open. Another flap opens defroster hoses and closes heat exit.