Originally Posted by Fritztheelephant
You should be ablt to attach a piece of tubing to the foam applicator and drop that to the bottom of the cavity. Fill some.. let it expand upward..fill more on top. Research cavity fill for existing structures and you will see the process for filling existing home walls with expanding foam...should be same process.
I agree that you may not want to completely encase the cooling tubes. Is there a way to segregate the space and fill only between the tubes and outside wall?
Not really. The void is about 3" thick but it has a few coolant lines running in and out that would keep me from sliding a thin rigid material in between the outside walls and coolant lines. I think my best bet is going to be batt insulation.
Ideally, I would like to take the shell off from around the internal hardware and do everything that way. But I don't know anyone around here that is good at welding. The shell is spot welded together and to the base. If I had the shell off, I could do a lot more to it.