Ive turned my indian restaurant mango chutney barrel into a well insulated mash tun for next to nothing!
my costs so far:
30ltr barrel = £0 (ta local take away)
copper piping = £0 (ta freecycle)
ball valve = £3.50
tank connector = £1.40
plumbers tape = £1
roll of foil = 20p
wilko's own 'duck tape' = £1.50
Wicks' cylinder jacket = £7.99
Grand total = £15.59
Now for the pictures:


first layer on the bottom:

snuggly tight!


double insulated lid:

Temp test. 20 ltrs into the tun. amb temp 18.4Ëš

63 mins later, amb temp 17Ëš

not bad for a 1st try!