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Good idea. I had not thought of that. I may do that. I was probably looking for an excuse to solder, but the zip ties would probably work as well (possibly stronger...not sure how sturdy the solder is on copper). I will give that some thought.

I just noticed the spider on the wall in the background. It isn't real, it is a Halloween decoration I put in the shot by mistake.

So here is my chiller so far. I haven't soldered the coils to the output tubing yet, and 20 feet didn't go as far as I had thought it would. I also found some old copper in the barn I can use for strapping to make it sturdier.

That sounds nice acidrain. I am only coiling 20 feet for my first cooler, but I think I may use the small gap between all coils and solder the inlet and outlet tubs to the coil (as my strapping) to maintain the gap. Is there any particular solder and/or flux I should use?

Thanks earwig! I may start working on my chiller tomorrow. If you are interested in understanding what I meant by "the gap", if you look at these chillers they seem to all have one or two tight coils at the bottom...then a very loose coil (what I was calling a gap), and then they go back to...

I have picked up some copper tubing to build a DIY immersion wort chiller. In looking at some plans and commercial products online, I noticed some run coils all the way up from the base, but other leave a gap. Is leaving the gap an attempt at not cooling the bottom of the kettle, but only the...