Measure Flue Gas Temp on an Insert - Anyone got an idea/product?

[oconnor]

I am looking into ways to measure the temp in my flue after just installing my Jotul Insert. Of course, I can't just install a probe thermometer, because it would be behind the cast iron surround.

I have seen some mention on here of "laser thermometers", but would like a more permanent install, and while a magnet mount would fit stovetop, It doesn't respond as fast as the flue temp does.

I am thinking there must be some sort of remote electric unit I could install to comunicate the temp to me. I am thinking that of all the high heat electric sensors out there in various industries, I should be able to fit one of them to the flue, and get some useful info back. Perhaps even an O2 sensor (like in a car exhaust system), while not a temp sensor, might give me some info on combustion completeness, which is after all, what I am truly interested in.

Or, maybe I am as obsessive as my lovely wife says I am, and should just enjoy the pretty flames.

Any thoughts/ideas?

 

[burntime]

Get it good and hot, put a magnetic thermometer on it high on the unit where it produces heat, thats your high point. Then burn baby burn

 

[WES999]

Here is somthing I posted earlier.
Maby somthing like this would work for you.
https://www.hearth.com/talk/threads/21198/

 

[Adios Pantalones]

A variety of pyrometers- digital readout etc:

http://www.baileypottery.com/kilns/pyrometers.htm

 

[rfalk]

Why not an infrared thermometer, such as one of these? they are less than $100 or are you interested in the temp inside the flue? Wouldn't it be about the same as the surface?

(broken link removed to http://www.testequipmentdepot.com/fluke/thermometers/62.htm)

 

[oconnor]

Why not an infrared thermometer, such as one of these? they are less than $100 or are you interested in the temp inside the flue? Wouldn't it be about the same as the surface?

(broken link removed to http://www.testequipmentdepot.com/fluke/thermometers/62.htm)

Being an insert, the only surface I have is, well, inserted, and therefore not exposed.

The idea of an electric thermometer that will squawk at me during an overtemp appeals to me. Have a temp alarm here that I had on my old stove pipe, but it won't work on the insert. The surface temp of the stove is hotter than singlewall pipe, and doesn't respond as quickly as the flue gas temp does.

I'm just surprised I can't buy one of these rigs of the shelf.