Ok if you want to test someone thats done it for 11 years I'm golden.
There's 2 methods to doing it. The convection oven and the heat stacks.
If you're doing the convection oven you turn that sucker on let it get rolling for about 5 minutes before you toss the liners in. Take the liners out of the boots pull the footbed out and line them up in the holders and leave them be between 10 and 15 minutes depending on which Intuition foam they've used. If its ultralon you're better off going for 15 plus minutes, if its the crap that 32 uses 12 minutes is pretty solid. If its a power wrap liner go for 15 minutes exactly.
When the liner has become warm it's going to expand and look like a giant marshmellow. It's coming out of the over at around 180ish degrees give or take depending on if the thermostat is correct or not. Spray the heel of the liner with silicon spray so it'll slide into the boot easier. Once its in there and on the persons foot have them stand flat footed in the boot and grab the liner and pull up to ensure that you're not folding the liner anywhere. Tighten the boot up and have them stand in a neutral position with the ankles and knees bent slightly forward. If you're going for the effect of more toe room a toe cap put over the foot then with the sock pulled over it is desired. You can also elevate the toes slightly to have the heel sink back into the heel pocket. If a custom orthodic has been created and you want the liner to mold with it. Put the footbed on the foot and pull a sock over it. This will push the base of the liner down and create a better mold to the shape of the liner.
Now if you're using a heat stack which is nothing more than an over grown blow dryer there's a few tweaks. If you have a good heat stack you can control the heat on it the Ride/K2 ones have slight tweaks on them, the 32 ones under perform with theirs. Now I've found that with 32 boots if you're drastically down sizing that double cooking them for a total of around 22 to 24 minutes is key and you can get someone with a size 10 foot into a size 9 boot. Instead of removing the liner from the boot leave it in their just remove the footbed so it doesn't melt and toss it on the stack.
The only boots that it's pointless to heat mold are Salomons the foam they use is designed more to break in with 3 to 5 days of riding than 12 minutes on a stack. Burton claims you can do it with theirs but you have to be careful of what model you use as certain ones you'll heat the gel up and harden them. Same goes for DC, especially any DC with the pump on the liner as you'll reheat the glue and it seals the valves to the pump making it inoperable.
As far as it killing the foam and lessening the life span. If its a true intuition liner it actually should have this done before it ever touches snow and won't effect it. In lower pricepoint boots usually in the 170 and under range you get older generations of foam that break down quick anyways. Case in point pull a liner out of a Salomon Brigade and tell me that heat molding would do anything to that boot.
A big no no is heat molding boots that someone has been out riding in all day. All you're going to do is heat up their foot funk and spread its foul smell across the shop.
So there buddy that's how its done now don't you have some asstructing to go do.
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