Fresh air hose.

[Spitz]

Is this available?
The hose goes from under the bonnet through the dash and down to the early fresh air heater.  Opening on the heater is 3.25".
I have all of the coil....maybe it can be covered(?)

Also....how do I detach the window defrost tube from the back of the heater?  Don't want to bust anything

[MPlayle]

I have heard that McMaster has tubing similar to the large diameter fresh air hose.

As for the smaller demister hose, from the picture you attached I would try "unscrewing" it some and see if it loosens.  I don't have much familiarity with those earlier style heaters.  The early Minis I've had had slightly later heaters where the demister hoses slid over the outlets on the sides.

[94touring]

I'd try unscrewing the small hose.  The big hose I've often wondered if the rv hose I see in wal mart in the automotive aisle is the same diameter. 

[MiniDave]

Are those rocks inside the large opening?????

[Spitz]

No...they are oblong food pellets of some kind I think...maybe burner pellets(?)   They heater was absolutely full of it....obviously a mouse was making a home or stash

[tmsmini]

McMaster definitely has the duct.
7 Enterprises may now be selling it as well.
This what I used:

5499K447 High-Temperature Blo-R-Vac Duct Hose for Dust, 3-1/4" ID, 3-3/8" OD, Black, 12' Length

http://www.mcmaster.com/#catalog/121/254/=zojsvi
Terry

[Spitz]

Thanks very much for that link....thqat is some pricey stuff!  ( was that a typo you made...should it be 5499K247?)
Is the cheaper stuff above it ( 3.5"OD 53145K64 ) going to be too large to fit through the holes?  It's nearly 1/2 the price

BTW...I got the small hose out...yes, by turning it out.

Is the defrost tubing available?

[tmsmini]

Yes, the price has gone way up since I last ordered.
They have other materials, but I went for the heat resistant double coated style