It will work with four but, probably not nessesary at such a low power. Why so long? The length will be the biggest problem if the pipe orientation is horizontal. If the pipe is verticle length should not be a problem and 3 pipes would be plenty for the amount of power it has to keep cool. In a hori...

First I will tell you I was a Tech not an engineer. What I can tell you that $3,600 is no suprise for a prototype. Thermacore is not known for being low cost, Most job's were high end. Length on a larger diameter heat pipe/thermosiphon usally meant that is was a gravity aided system. This means that...

Thank you, This is a much better welcome response than I got on Tom's Hardware Forum. Two different people told me not to respond to an old thread which was not that old and then they closed the thread.

Hello, I was a former employee of 18 years for Thermacore inc. and I can tell you that end caps on heat pipes have no function except to protect the end of the heat pipe. Solder is sometimes used because when a heat pipe is closed by means of a pinch off tool or also known as a cold weld it will cre...