Ceramic wool

[FreshMar at aol.com]

>
>You can buy a ceramic wool blanket which will withstand high temps and has 
>good insulating 
>properties.  The stuff I used was around 3/4" thick.  Just wrap it around 
>and wire it on, then 
>tape over it with aluminum tape.  It wored very well on my MG
..snip... You will 
>also make more hp with lagged exhaust, not much more though.  It does keep 
>the under hood temps 
>down.  The down side to this is that with steel headers high temp 
>oxidation takes place and large 
>amounts of scale form very quickly on the pipe under the lagging.  I also 
>had a big problem with 
>the headers cracking all of the time.  You will really need stainless 
>steel or inconel headers if 
>you want to do this properly.
>
>Jeremy Edmondson
>
.. thanks for the info..
ceramic wool? is that like fiberglass?
And <hope this is not a dumb q>what is lagged exhaust?
Rust avoidance is one of my concerns- VW heater boxes are getting rare 
and expensive to replace- W/O them i freeze.
Mario T.