Heater - sucking air from outside? - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans Advertise
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Hotrodding Basics
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-07-2011, 02:49 PM
staleg's Avatar
Registered User
 

Last journal entry: Hand brake
Join Date: Dec 2005
Location: Norway - Europe
Age: 53
Posts: 1,104
Wiki Edits: 0

Thanks: 79
Thanked 22 Times in 20 Posts
Heater - sucking air from outside?

I have a question for you guys that have a heater in your hot rods:
Does it suck air from outside of the car, or does it just heats up the air that's in the car?
First alternative is maybe more efficient in wet weather? Last alternative is for sure much more simple to make...

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-07-2011, 03:26 PM
Registered User
 
Join Date: Oct 2007
Location: Portland,Or
Posts: 847
Wiki Edits: 0

Thanks: 0
Thanked 53 Times in 45 Posts
Generally speaking, the heater uses outside air. I have seen some cars and trucks that you could choose either outside or inside air.

Do you just want heat, or is the heater going to do some defogging of the windshield? If you use inside air for this, after a few cycles through the heater, the air would be saturated with humidity and would not be very good at removing mist from the inside of the windshield.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-07-2011, 03:55 PM
Joe G's Avatar
Registered User
 
Join Date: Nov 2008
Location: St. Paul, MN
Age: 45
Posts: 739
Wiki Edits: 0

Thanks: 259
Thanked 138 Times in 112 Posts
Aftermarket Heat & A/C systems such as Vintage Air do not breathe outside air. It's one of the compromises that allows these systems to be so small. If they were to breathe outside air, the A/C evaporator coil and condenser (and maybe the heater core) would have to be much larger.

Hope this helps.....
Reply With Quote Quick reply to this message
 
  #4 (permalink)  
Old 02-08-2011, 04:55 AM
staleg's Avatar
Registered User
 

Last journal entry: Hand brake
Join Date: Dec 2005
Location: Norway - Europe
Age: 53
Posts: 1,104
Wiki Edits: 0

Thanks: 79
Thanked 22 Times in 20 Posts
Thank you for your answers!

I will make the heater able to suck outside air then. Seems like it will be worth the small amount of extra work.
And the air intake will not be visible outside the car.

Pictures will come later.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-08-2011, 08:42 AM
1ownerT's Avatar
Home School Valedictorian
 
Last wiki edit: Health and safety in the shop or garage
Join Date: Dec 2004
Location: Iowa
Age: 58
Posts: 1,639
Wiki Edits: 4

Thanks: 0
Thanked 3 Times in 3 Posts
Just drawing outside air will not stop the humidity issue, the outside air can be as humid as the inside air. OE systems use the air conditioner to remove the humidity on the defrost setting.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-08-2011, 09:10 AM
Registered User
 
Join Date: Oct 2007
Location: Portland,Or
Posts: 847
Wiki Edits: 0

Thanks: 0
Thanked 53 Times in 45 Posts
Living in Norway, I am going to guess that the car you are putting th heater in is not a convertible.
Cars are set up to draw outside air in because it helps prevent engine exhaust from getting in the car.

I find it ironic that somebody whose last Wiki edit was about health and safety in the garage is not concerned about your health and safety when you are driving your car.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-08-2011, 09:15 AM
NEW INTERIORS's Avatar
life is a temporary assignment
 

Last journal entry: 41 WILLYS FRAME
Join Date: Jul 2007
Posts: 11,007
Wiki Edits: 0

Thanks: 2,376
Thanked 1,542 Times in 1,022 Posts
I like when it suck's the inside air myself.. Like the way Vintage Air is set up..
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 02-08-2011, 10:08 AM
staleg's Avatar
Registered User
 

Last journal entry: Hand brake
Join Date: Dec 2005
Location: Norway - Europe
Age: 53
Posts: 1,104
Wiki Edits: 0

Thanks: 79
Thanked 22 Times in 20 Posts
Quote:
Originally Posted by 1ownerT
Just drawing outside air will not stop the humidity issue, the outside air can be as humid as the inside air. OE systems use the air conditioner to remove the humidity on the defrost setting.
No, not completely, but it will probably do the job better than drawing only inside air.
Inside air is usually way more humid than outside air even in rain, because the drivers/passenger clothes are more or less wet. And add that to the drivers/passengers breath. Put he heater in your daily driver on "recirckling air" in rainy weather and see for yourself.

AC is not an option.

I live in Norway, yes, but the car is a Roadster (a 34 Ford).
I'm planning to make some sort of Carson top for it later, and then the heater will be nice to have in wet and/or cold weather.
I have also changed the top of the doors to accept glass power windows.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 02-08-2011, 10:55 AM
1ownerT's Avatar
Home School Valedictorian
 
Last wiki edit: Health and safety in the shop or garage
Join Date: Dec 2004
Location: Iowa
Age: 58
Posts: 1,639
Wiki Edits: 4

Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by DanielC
Living in Norway, I am going to guess that the car you are putting th heater in is not a convertible.
Cars are set up to draw outside air in because it helps prevent engine exhaust from getting in the car.

I find it ironic that somebody whose last Wiki edit was about health and safety in the garage is not concerned about your health and safety when you are driving your car.
W. T. F. are you referring to? You do realize that there are recirculate options on OE systems...allows one to recirculate the interior air.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 02-08-2011, 10:58 AM
1ownerT's Avatar
Home School Valedictorian
 
Last wiki edit: Health and safety in the shop or garage
Join Date: Dec 2004
Location: Iowa
Age: 58
Posts: 1,639
Wiki Edits: 4

Thanks: 0
Thanked 3 Times in 3 Posts
Quote:
Originally Posted by staleg
No, not completely, but it will probably do the job better than drawing only inside air.
Inside air is usually way more humid than outside air even in rain, because the drivers/passenger clothes are more or less wet. And add that to the drivers/passengers breath. Put he heater in your daily driver on "recirckling air" in rainy weather and see for yourself.

AC is not an option.

I live in Norway, yes, but the car is a Roadster (a 34 Ford).
I'm planning to make some sort of Carson top for it later, and then the heater will be nice to have in wet and/or cold weather.
I have also changed the top of the doors to accept glass power windows.
Put your OE system on defrost and watch the ac compressor engage.
Reply With Quote Quick reply to this message

Recent Hotrodding Basics posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Insurance
Please select your insurance company (Optional)

Log-in



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
anyone have problems sucking oil pan dry willis 77 Engine 14 08-09-2010 06:08 AM
Sucking My Oil Pan Dry goingonmotor4 Engine 11 08-23-2009 12:23 PM
GMPP 454 sucking oil Bryan59EC Engine 14 08-31-2007 05:02 PM
sucking noise Super Chevy Engine 6 11-29-2004 11:01 PM
valves sucking oil wrenchturner Engine 3 05-27-2002 05:42 PM


All times are GMT -6. The time now is 01:45 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.