Not a busy day for me today but here is something different.
To heat the glass hull I put it inside my oven of material used in garage doors
put a milk bottle of boiling water at each end and close the ends off.
I put a thermometer in the side .The temp will reach 40 degrees and i change
the water when the temp lowers to below 30degrees doing this for 12 to
24 hours.
Cheers Ken