0
$\begingroup$

Background

So I am working on a project to where I am trying to heat up air within a 2 inch tube, with high air flow. I am using 2 inch tri clamp stainless steel tubes where I basically have a fan on one end and am trying to get an inline heater so that the result is a high flow rate and high temperature (around 400F - 500F).

What I have tried so far

I have had some decent success by buying a cheapo heat gun from Harbor Freight and taking the nickel chromium array out of it, suspending it inside a 2 inch tube. I was able to get to about 400 F but after some time (an hour or so) the element seems to burn out and die. I seem to be so close to being able to achieve this goal but was hoping there is a more reliable method to heat the air without having to replace the element that often. I would like to stay to electric heat sources if possible and it would need to be 120V, below 15A (standard house breakers in a kitchen).

Question

So I am not asking for a particular product, but rather what electric heater types out there might work for my application?

The closest thing I could find was something like this:

enter image description here

(Amazon link)

This one fits inside a 2 inch tri clamp tube but seems it needs to be in a liquid, not just with air flow around it? Would this more than likely just burn up too?

| improve this question | |
$\endgroup$
  • $\begingroup$ Check out heat exchangers $\endgroup$ – Solar Mike Jul 14 '19 at 21:23
  • $\begingroup$ Why not buy a bigger, better hair dryer ( or industrial heat gun which is a fancy hair dryer) and blow it into your stainless tube. $\endgroup$ – blacksmith37 Jul 14 '19 at 23:54
  • $\begingroup$ Perhaps an inline pipe heater such as deltat.com/duct_heaters.html $\endgroup$ – Eric Shain Dec 18 '19 at 21:01
1
$\begingroup$

Induction heat your pipe! Pipe is cheap to replace, and unlikely to burn out in a short time, as it has a rather large cross section.

A white hot pipe insulated on the outside should provide plenty of hot air.

| improve this answer | |
$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.