i'm new be nice

[Fredoops]

how dose having a thicker pipe reduce heat soak?

Basic thermal conductivity, what did you fail physics?

Thermal resistance formula: L/(kA) or in English (something you appear to be failing to grasp): Thickness/(conductivity*area)

Else being equal the greater the thickness the greater the thermal resistance.

To put it in stupid speak:
A thin wok pan vs a thick cash iron pot, which heats up quicker?
A single brick house vs double brick house, which is cooler?

Now quit being an ass who thinks he knows everything.
Aren't you the same bloke who didn't believe in such thing as oxidation in engine oil in another thread?