Replacing the asbestos lining on OG Heat xchangers

http://thelatebay.com/index.php?threads/asbestos-in-heating-system.22661/

Further to my thread above Im looking for a suitable material to replace the material in the exchanger. This is a foil adjacent to the fins then a wire mesh with an asbestos woven insulator to the outside - so thats - exchanger fins then foil then mesh then asbestos thenthe casing. Currently thinking some thin ally then using a fibreglass fire blanket type material to insulate then the case, or possibly some sort of mesh or another layer of ally. Kind of ally IM LOOKING AT IS THE STUFF USED FOR EXHAUST (oops) bangages or similar but dont know where to get that from or any other ideas.
Ta

 

would wool work? insulating and heat retardant.

 

This may work. Not sure on the temp rating.
Silverline Plumbers Soldering Brazing Heat Resistant Mat 300mm x 250mm 633540
http://bit.ly/12go29R

 

Bit too small but could be done in smaller pices. Thinking of lining the tin halves and rivetting through to some tin on the inside to hold it all together. Good call!!

 

gets too hot. Would melt/burn I think

 

Stumbled across this on my daily fleabay trawl, not sure if its what you was thinking of nor do i know if the price is any good or not but i shall pop you the link anyway

http://www.ebay.co.uk/itm/Universal...arts_Vehicles_CarParts_SM&hash=item2c6dc7d736

 

That would be good for the oitside and abandon trying to do anything inside tbh.

 

Buy a fire blanket and chop it up

 

Got one but they are pretty thin, at least the one I have is!

 

Get another and double the thickness up

 

Is there a way you could fill the void with perlite?
Its cheap from horticulture suppliers and an excellent insulator against heat

 

Have you taken the case off?

 

http://www.perlite.net/

 

Yup cases are off both of em and ive started cleaning them up.

 

The sheet inside the heat exchangers is pretty thin too, 1 square meter of that stuff would be plenty, the idea is just to prevent some heat loss, the air still has to flow through the heat exchangers and upto the front,

 

there isnt a void theres the manifold with exchanger cast around it then inside the two halves of the exchanger shell there are the liners which are 3 layers as above. Foil-mesh and asbestos mesh. When new all this would be bonded together.

 

Thinking I might just clean em, junk the guts and put em back together and wrap externally!

 

Pic

 

The thing with that external wrap is it holds moisture
Id wrap the mesh in fire blanket and fit it all back together dude

Great post though as this has made me wonder whats inside my 1600 heat exchangers as im going to need to pull them apart to repair them

 

F all if they're repro ones...