Temp dial on an Igloo?

[pads72]

I've a 45L Igloo mash tun, similar to PDTNC's build here: http://pdtnc.wordpress.com/2010/12/30/b ... -mash-tun/

Has anyone done a cold box mash tun build and put in a temperature dial thermometer such as MrLard and Angel Homebrew sell?
Or is the thread on the dial body too short for the walls of the mash tun?

Cheers
Paddy

[Fil]

I think you would need a dial sized hole in the outer skin so u cld fit the thermometer well into the inner skin to seal,
pm/email mrlard and or angel for the thermometer measurements to confirm. but the thermopot builds ive seen have had the dials sunk into the outerskin.

[pads72]

Fil, you were right... I did one today, bit of a ball ache, but I'm happy with the result!

The q-max cutter naturally wasn't long enough, and I'm an impatient bugger, so decided to improvise! Drilled a bigger hole on the outer skin with a spade bit, to allow the q-max to cut the 14mm hole on the inner skin for the thermometer thread.

Then came the real improvisation! To create a outer hole big enough to sink the body of the dial, I heated a modelling blade on the gas job and gradually melted/cut the outer skin. Then cut away some of the insulation to allow the dial to bed in to the right depth, all tidied up with a loose Stanley blade.

Cleaning up hole






Tools used

[angelHomeBrew]

Hi Pads

That looks a very tidy job, good fit

Just for info, the size used on the customers thermos pot below to sink the thermometer was a 86mm holesaw

[pads72]

Thanks AHB! If I had been the patient sort, I would have waited to get a bigger hole saw than those I already had, but I couldn't wait!

[sbond10]

So is hole all the way thru the centre one ?

[pads72]

So is hole all the way thru the centre one ?

Yep, the centre hole is 14mm for the thread to fit through

[sbond10]

Then sealed to stop liquid falling out guess it saves you opening during mashing

[angelHomeBrew]

Looks like you did just as good a job without it

Saved a few quid and how often would you need a 86mm hole saw if you bought one !

[pads72]

Then sealed to stop liquid falling out guess it saves you opening during mashing

The thread/temp probe sit on the inside of the Igloo, with a silicone 'o' ring over the thread, then a washer and a nut to create the seal - sorry, should have taken an interior photo!

[pads72]

Looks like you did just as good a job without it

Saved a few quid and how often would you need a 86mm hole saw if you bought one !

Yep, the seal seems good and the dial is in nice and snug. Nice dials by the way, really large and clear. Just need to test it out now!