Hi Steve
Im in Thailand mate - i had them made up at a little kiln i found - to be honest ive no idea what is going to happen!!
I would think i will have to surround them in something then encase them - the problem ive had before is the temperature getting too hot and yes these would crack i reckon - mind you at 20 squid is worth a go! i know the gas fittings are about 15 squid but im trying to get one which is semi auto - ie you turn a knob and it ignites the flame
The holes were made at the time of making
best, Rich