How much are you after?
How much are you after?
The topic of the Armaflex boiler insulation has been mentioned more than a couple of times now.
Is this item something that Andy might consider adding to the Beanbay at some stage? 8-)
Sorry to go a bit OT.
Im currently looking at something for my 2 litre Diadema boiler--but havent found what I want yet.
I have a two group Rancilio so I guess I will need about 1 square m?
Might have that spare will have to check. ;)
I have a project in the works so I will get to it this weekend and see how much is left over and I will let you know after the W/e.
Hey moto coffee,
did you insulate your boiler on the weekend?
When I finally had a good look at my boiler, I realised that foam insulation would be difficult as a number of the pipes run quite close (mm) to the boiler, and I really didnt feel like re-routing everything on a brand new machine.
My local kiln insulation supplier was able to provide some offcuts of spun ceramic insulation (good to 1500°C). These were mounted in a pattern of high and low on some aluminium foil insulation and fixed, with some difficulty and no neatness, around the boiler and underneath the existing pipework. I did not insulate either the top of the boiler or the bottom as both have too many connections to make it practical or easy.
The result was that the pressurestat now cycles on for 4 seconds every 75 or 80 seconds rather than 4 seconds ever 50 seconds. Its not as impressive a change as I was hoping for, but it will have to do. And I guess I really shouldnt have expected better than that--its about a 60% improvement.
Sorry, no pics--as I said--it is not pretty!
ps--the offcuts cost me $10 and I have lots left--if anyone in Adelaide wants to try it, PM me. The aluminium insulation was also a offcut from my local air-con installer--it was free.
Sorry Ralph, no go on the weekend, my wife decided to organise a social weekend so the machine was on most of it. Not going to insulate a hot machine. ;D Will have a close look this week and estimate how much I will have left and then I can let you know if I am going to have much left.
Hey GWOriginally Posted by 25100705350D100F030E06620 link=1245561908/9#9 date=1246313394
could we have a picture of the "product" you are using, or one of the "sandwich" you made. (left overs)
i am about to rebuild a machine and was going to insulate along the way and looking for ideas.
I would also be interested in some A / HT as well if any pne has some spare or group buy etc
If you want to see the product, just go to the wifes (or girlfriends) make-up area and look at a bit of cotton wool. Its exactly the same except made from spun ceramic.
Its much finer than glass wool, and not quite as itchy--although I recommend rubber gloves.
The roll I have is about 2-3 inches wide and about the same thick. It separates in layers quite well. I reckon I must have about 10 feet of it, and I have used about 2, separated into layers of about 20-30 mm.
Ceramic insulation materials are very hazardous if some of the fibres are inhaled, similar outcomes to those poor buggers who inhaled asbestos fibres. You need to observe stringent personal protection including physical barriers so as to ensure no particles are inhaled either during the installation or afterwards....
Much better to opt for bio-soluble long strand fibreglass materials for this sort of thing, youd hate for you or your family to become exposed to this stuff...
Ill second Mals comments. Spun ceramic insulation is certified for use only in fully enclosed/encased/stabilized applications. While its a great insulator it is not your healths friend. :(
Java "Dont breathe glass!" phile
I have been toying with the idea of trying some of this Glareshield insulation on my boiler.
Just so happens that I have a roll of it lying around for underfloor insulation. Cost is approx $267 a roll.
Glareshield is mostly polyethylene and some aluminium foil.
According to the MSDS its boiling point is 145 deg C.
Armaflex HTs is 150 deg C.
Is 145 deg C enough of a safety margin for installing next to a boiler for say 4 hours a day?
I tried contacting Air-Cell technical support but havent had a response and suspect they wont answer.
Hi again mate....
Unfortunately, youre not comparing apples with apples. The MSDS for your linked material is its actual Melting Point, not its maximum operating temperature which for Armaflex, is 150C as you say. The safe maximum "continuous" operating temperature for the Glareshield is considerably less than its melting point.
Either try to buy some Armaflex as end pieces from used rolls or maybe knock up a Bio-Soluble Fibreglass blanket to wrap around your Boiler... Very safe and very effective... :)