Half barrel bottom temp?

[satamax]

Hi everybody.

Matthew, or others, has anybody measured the temp at the bottom of the half barrels set up as bells.

Thanks a lot.

Max.

[matthewwalker]

I haven't Max. Of course, it all depends on where you place your exhaust and how much of the volume you use as active bell and how much is below the exit height and is dead space. The dead space will stay quite cool, but if the exhaust height is all the way at the floor, I imagine it could see fairly high temps close to the burn chamber.

[satamax]

May be i'll do some testing tomorow. There gonna be 35kg gas bottle as the "barrel" then another one as a bell and the half barrel in concrete as second bell. I have 5cm of concrete at the bottom.

Thanks a lot Matt.