miKe mcKoffee wrote: I have no idea how efficiently the relatively large mass of over six feet of HX heated copper tubing would heat the 25ml of water flowing through every 8 seconds... I could probably do the mod and measure the temp faster than researching to figure out the math!
Too, I am wondering... it appears that there is an air space between the tubing and the boiler since it's probably impossible to wind it so tightly that it touches all the way around..
Mike, At home depot in the plumbing/pipe thread sealant section I found for $6:
Oatey Epoxy Putty - extracted from inside wrapper: "steel filled, hardens in 15-20 minutes, 250F continuous, 300F intermittent, exhibits good electrical insulation properties, etc" Net wgt 4 oz. Looks to be quite enough to do the job.
I cut off 1/4 inch and mixed it in my fingers and thinned it out to 1/8" or so and stuck it to the end of a 3/16 steel rod. An hour or so later, I stuck it directly into a gas flame. It blackened and smoldered a tad. I set the burner to turn the grid cherry red and left the stuff sitting on the grid about an inch or 2 from the cherry red part for a while with no apparent ill effects.
I have just ordered a 24" 100watt rope and will use that stuff to hold it in and imbed a tc (hope I dont forget!!!). No PID yet so will initially probably connect it in parallel to the boiler on the SSR.
PID is down to 212F, learning Stockfleth's, things seem to be progressing very well (meaning taste is noticeably better and much more consistent)!
and it's all Andy's fault! 
