thanks Ryan, changing the temp sensor to #11 fixed, now reads 20C.
Kinda out of topic. Dewalt 660 or 611. I know you recommend the 660, but thinking on weight the 611 is 4.6 lb and the 6660 is 3.2 lb (or 50% heavier). My build is 4’x4′ for a 3’x3′ cut area. My concern is flexing of the pipes. your thoughts appreciated. thanks