Date:         Sat, 9 Dec 1995 09:48:23 -0600 (CST)
Sender:       Vanagon Mailing List <vanagon@vanagon.com>
From:         Sami Dakhlia <dakhlia@wuecona.wustl.edu>
Subject:      Re: heater assist kit

On Fri, 8 Dec 1995 whysper1@csra.net wrote:

> I was wondering if anyone has tried out one of those 
> inline heater/defroster/defogger assist kits.  It is supposed to 
> boost heating up by over 100 cfm and right now I think my heater puts 
> out about two or three cfm.  I really need something that works, does 
> anyone know of something better?

They help a little bit, mainly with defrosting. You should perhaps first 
make sure that there are no obstructions in the channels. Main suspect is 
the large black paper duct under the bus; in my case the inside lining 
peeled off and was pushed forward, pretty much blocking the air flow.

Then check for leaks. You may also want to insulate the ducts. Finally,
you should know that those inline fans can be obtained for as little as
$20 at boating supplies stores. (Boats use them to vent the fuel tanks
before starting up.)

Sami