Reply
 
Thread Tools Search this Thread Display Modes
 
Old 11-21-2008, 10:57 AM   #1
2 Rivet Member
 
1976 31' Sovereign
Blairsville , Georgia
Join Date: Jul 2008
Posts: 58
Return Air?

Hi all, The furnace in my '76 Sovereign is working well now but I have a question. Does it recirculate the interior air (like my house) by way of a return air duct or opening or does it continually pull in outside air or what?
__________________

__________________
Chip Arnold is offline   Reply With Quote
Old 11-21-2008, 11:01 AM   #2
Site Team
 
azflycaster's Avatar
 
1975 25' Tradewind
Dewey , Arizona
Join Date: Mar 2005
Posts: 12,127
Images: 62
Blog Entries: 1
The heated air is completely separate from the burner air in the furnace. Air for the combustion section is pulled from the outside and then vented outside as well. The interior air is reheated and recirculated inside the trailer.
__________________

__________________

Richard

Wally Byam Airstream Club 7513
azflycaster is online now   Reply With Quote
Old 11-21-2008, 12:17 PM   #3
2 Rivet Member
 
1976 31' Sovereign
Blairsville , Georgia
Join Date: Jul 2008
Posts: 58
I have the under sink cabinet pretty much apart due to removing the tambour which wasn't sliding all the way open. Looking around under there, The outgoing ductwork is easy to see and understand but I don't see how the interior air gets back into the unit to be reheated and recirculated. It works fine but I'm curious and want to know how stuff works :-)
__________________
Chip Arnold is offline   Reply With Quote
Old 11-21-2008, 12:25 PM   #4
Well Preserved

 
1993 21' Sovereign
Colfax , North Carolina
Join Date: Jun 2003
Posts: 20,192
The return air is pulled up into the furnace, run through the heat exchanger, and blown back out through the ductwork. The return is usually an open spot on the furnace housing near the floor.
__________________
Meddle not in the affairs of dragons, for you are crunchy, and taste good with ketchup.
Terry
overlander63 is offline   Reply With Quote
Old 11-21-2008, 12:28 PM   #5
Rivet Master
 
rogerdodger's Avatar
 
Vintage Kin Owner
Fresno/Clovis , California
Join Date: May 2008
Posts: 685
On my trailer, the air duct is to the left of the heater. The heater is under the stove. I can see the intake duct from inside the front door entry. It is the only vent not throwing hot air, so I guess it is the intake??
__________________
Roger
Air# 29488
rogerdodger is offline   Reply With Quote
Old 11-21-2008, 12:29 PM   #6
2 Rivet Member
 
1976 31' Sovereign
Blairsville , Georgia
Join Date: Jul 2008
Posts: 58
Thanks all. I'll have a better look at the thing when I go back out there in a while.
__________________
Chip Arnold is offline   Reply With Quote
Old 11-21-2008, 04:20 PM   #7
2 Rivet Member
 
1976 31' Sovereign
Blairsville , Georgia
Join Date: Jul 2008
Posts: 58
Well I ended up tearing out the whole front of the cabinets because I decided since the tambour was sticking I'll build a regular cabinet front with nice wood doors. Anyway, when I took out the under sink shelf and the furnace was completely exposed, I could see the return(s) easily. There are two openings in the furnace box approx. 2" X 10". One on the top and one on the side facing the under sink area. The one on the top was completely blocked by the shelf which was laying flat on top of the furnace box and completely covering that return opening. Running the furnace with both openings now free the unit puts out a lot more air at the heat ducts and the exhaust is much cooler! So I'm happy that I pulled everything apart! Now to build new facias and doors.
__________________
Chip Arnold is offline   Reply With Quote
Old 11-21-2008, 04:36 PM   #8
Rivet Master
 
1975 29' Ambassador
Reno , Nevada
Join Date: May 2003
Posts: 1,351
The return air is not ducted but is expected to find its way through the cabinetry to the back of the furnace. That is where the blower is and you'll note the ventilation holes near the rear of the furnace to accept the air that is blown out through the ducts.

I don't know what it is about restricting air flow through the furnace but I have even encountered some whose ductwork didn't provide for sufficient flow to keep the overheat switch quiet. Keeping the area around the furnace clear is one way to make sure that the return air part of the loop isn't hindered too much.
__________________

__________________
bryanl is offline   Reply With Quote
Reply


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

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
I shall return!...........hopefully Van Our Community 7 09-08-2008 03:22 PM
4CU 004 : Dead Horse 2 -The Return of the Peeps! azflycaster WBCCI Rallies & Events 234 02-24-2008 05:55 PM
Past the Point of No Return kayelm Cleaning, Stripping & Polishing 3 08-13-2007 08:13 PM
Flamingo Return rickandsandi Off Topic Forum 5 08-03-2007 09:50 PM
The return of the Argosy..... Silvertwinkie Vintage Kin 25 04-06-2007 05:20 PM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 07:26 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.