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Joined: Dec 2001
Posts: 116
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2001
Posts: 116 |
What direction should the fan in the heater turn? Should it be pulling air through the heater core and blowing out the front grill or pulling in from the front and blowing down through the heater core?
Matt M
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Joined: Nov 2001
Posts: 5,906 Likes: 8
Former ChatMaster ChatMaster - 5,000
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Former ChatMaster ChatMaster - 5,000
Joined: Nov 2001
Posts: 5,906 Likes: 8 |
It blows out through the front vents. That's why the vents move so that you can adjust the direction of the flowing air.
Bill Barker
Previous VCCA CHAT Administrator
(VCCA Member: 9802)
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
Vents? What vents? The 1931-32 Chevrolet accessory heater doesn't have any adjustable vents.  :grin: :)
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Nov 2001
Posts: 19,758 Likes: 64
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 64 |
Matt,
That is a good question. Because of the position of the fan it would be more efficient to draw the air through the core and out the grill. But, a deflector was available for the heater. It fits on the bottom under the core. It does not make sense for it to function to change the direction that air is drawn into the heater. So, suggests that if it were installed then the air would be drawn past the grill, out the bottom core and directed toward the feet of the passenger or driver. Guess the correct answer is "depends".
How Sweet the roar of a Chevy four!
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
Actually, the accessory 1931-32 Chevrolet heater is a "down flow" not an "out flow". The fan draws in the cold air through the grille and circulates it through the heater core and then the warm air exists the bottom of the heater. A deflector was offered later in 1932 to deflect the "down flow" air more towards the floor and the diver's side of the car. By the way, as a point of interest, between two and four gallons of water are circulated through the heater per minute and the normal discharge is about 2 amps. :) :grin:
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Nov 2001
Posts: 5,906 Likes: 8
Former ChatMaster ChatMaster - 5,000
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Former ChatMaster ChatMaster - 5,000
Joined: Nov 2001
Posts: 5,906 Likes: 8 |
Ouch... Chipper and Skipper are both right... I was in too much of a hurry at 11 pm to answer correctly. I have an aftermarket (ARVIN heater) in my Five Passenger and it blows out the front vents...
I have the Chev heater all restored on my workbench for the Landau. I wasn't thnking about THAT one. But yes, it should "push" the air straight down past the heater core. If you think about it... you DON'T want the heated air coming up past the motor windings. So the correct answer (for a Chev heater) should have been DOWN-FLOW.
Thanks guys for correcting me... It's nice to know that you're not too shy to do that. Hee Hee.
Bill Barker
Previous VCCA CHAT Administrator
(VCCA Member: 9802)
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