Sorry Lee , it’s all gone pear shaped with my fabricator, he just can’t be relied upon anymore, he can tig like a king but can’t see when people are trying to throw money at him .
I have had a couple of glitches with my heater with regard to coking up lately, I think it’s due to changing the orientation into a tower mounted system , all others supplied remain unaffected to date , I have decided to redesign the heater before too many go out !
I’m just about to start a new horizontal model to see what happens!