| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,080 Posts1,056,288 Members48,441 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Feb 2005 Posts: 199 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2005 Posts: 199 | There are two different heaters and both share a similar inside duct that simply diverts the flow to defrost or floor.
The air flow heater (delux) has a little better duct for the floor due to a baffle inside the duct that directs more of the flow to the passengers side.The airflow heater has the heater core in the engine bay and has four dash knobs.
The recirculating heater does not have this baffle in the duct and directs the airflow to the drivers side of the cab.The recirculating heater has the core inside the cab and has two dash knobs.
The baffle is simply a piece of metal that protruds about halfway up from the bottom of the duct and has no cable connected to it.The moveable baffle with a cable is for the defrost and will direct the air into the defrost duct in proportion to the setting of the dash knob.
I will try to post a couple of pictures in my web space for you to see.
Hope this helps,Hobert
"The Lord is my shepherd"
| | |
|
|
| |
