Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-16-2014, 10:38 AM   #1
2 Rivet Member
 
1970 27' Overlander
Tryon , North Carolina
Join Date: Oct 2013
Posts: 60
Furnace question

Hi,
I have a 69/70 (title and vin says 1969, but in the Airstream spec sheet the interior looks like a 70)Overlander and the furnace that is in it is a NT22a and is shot, unless I can find lots of parts(mostly a combustion chamber). So, what do I replace it with? Do I replace it with a Suburban NT20sq or a Suburban NT30sp? Or do I replace it with something else? What would require the least bit of retrofitting? I would like to use the original ducting, but that looks unlikely with the 20sq.
Planning a complete refit with the trailer, and currently living in it with just electric ceramic heaters.
Thank you all for a look at my issue!
Al
69Silvrbelle is offline   Reply With Quote
Old 01-16-2014, 10:53 AM   #2
Aluminum Addict
 
Gastonia , North Carolina
Join Date: Nov 2006
Posts: 66
Using an NT furnace would be a good choice. The Suburban line of furnaces of today will be a close but not an exact replacement. You'll likely have to do some sheet metal work to get the ducting to line up correctly. Good luck.
__________________
---AIR # 17817---
DJ
Heirstreamer is offline   Reply With Quote
Old 01-16-2014, 11:15 AM   #3
Moderator
 
DKB_SATX's Avatar

 
2017 26' Flying Cloud
Alamo Heights , Texas
Join Date: Aug 2006
Posts: 7,813
Images: 1
Blog Entries: 7
A new NT30SP furnace is smaller than the NT22a, so you'll have to build it a platform to get it up to the height of the intake/exhaust ports in the skin of the trailer.

You can build the platform as a plenum to attach ducts to, but you'll likely have to modify the ends of the ducts somewhat to get it all hooked up.

They're not particularly cheap, but have a lot of nice advantages over the NT22a. They're rated for a lower amp draw for the fan motor, and they're spark ignition rather than a pilot light.
__________________
David

Zero Gravitas 2017 Flying Cloud 26U | WBCCI# 15566

He has all of the virtues I dislike and none of the vices I admire. Sir Winston Churchill
DKB_SATX is offline   Reply With Quote
Old 01-20-2014, 02:10 PM   #4
Looking for John Galt
 
Dumpster's Avatar
 
Currently Looking...
Banjo , Montucky
Join Date: Jul 2009
Posts: 221
Quote:
Originally Posted by DKB_SATX View Post
They're rated for a lower amp draw for the fan motor, and they're spark ignition rather than a pilot light.
Interesting. Perhaps it is flat out wrong, but my AS owner's manual suggests my 22 draws roughly half the amps of what an NT30 does; one of the reasons I decided to keep it. I always assumed that was why it was so much quieter, which was another reason. And as you already mentioned, $550 was the cheapest I could find one, which was the third.............
__________________
K.C.C.O.

Just because you are unique, doesn't mean you are useful.
Dumpster 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



Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by the Airstream, Inc. or any of its affiliates. Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.



All times are GMT -6. The time now is 08:48 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.