Homebrew PCBs

I'm using it as a general purpose heating oven too (not food).  I was using it to preheat some moulds.  Sitting at 250C, the "Caution Hot Surface" sticker on the top was at 110C.

--- In Homebrew_PCBs@yahoogroups.com, MIKE DURKIN <Patriot121@...> wrote:
>
> Why? How often are you going to use it? My toaster oven hits 425°F in 10 minutes and have done a few boards in it with no issues. I use aluminum foil as a infrared shield from the heating elements. Check the heat profile for flux paste. I'm heating and cooling slower that the curve ... and its not by choice but simply the way it is.
> 
> Mike KC7NOA
> 
> -----Original Message-----
> 
> From: ftkalcevic
> Sent: 10 Mar 2012 03:48:57 GMT
> To: Homebrew_PCBs@yahoogroups.com
> Subject: [Homebrew_PCBs] Thermal insulation for a toaster oven
> 
> I'd like to improve the efficiency of my cheap toaster oven.
> 
> I suspect it is like all ovens - a thin sheet metal oven in a thin sheet metal enclosure.  And no thermal protection around the control electrics.
> 
> I'd like to use a thermal insulator, either wrapped around the oven, or just something stuffed into the gap between oven and shell.  I'd also like to protect the gap on the right where electronics will go.
> 
> Any idea what kind of cheap insulator I can use for that?  I've used ceramic blanket before, but a strip 50mm wide was very expensive.
> 
> Is household fibreglass insulation wool capable of withstanding the 300C+ temps?
> 
> Thanks,
> Frank
> 
> 
> 
> [Non-text portions of this message have been removed]
>