any way to tell flue temps with an insert and flex liner?

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scoooter

Member
Sep 9, 2010
155
Central Md
Could I use something like this (http://www.tequipment.net/ExtechTP875.asp) hose clamped to the outside of my liner to get approx flue temps? Or would this be worthless? I am going to use one of those on the stove to get temps, since it's a double wall and I don't have a good place to put a thermometer, so I figured I could stick it in one of the two "vents" at the top so that I would a get a true one layer stove temp.


Scott
 
You know I wondered that same thing. I was hoping to find a way I could have a probe go back the 8 inches or whatever into or around the pipe, then i wanted to mount the Thermometer on/in the surround...I figured like a dashboard. havent made it that far though, I just measure stove temp.
 
I'd look into installing an EGT guage/probe.
 
Interesting, if you used one of the EGT ones how would you seal around the hole on a flex liner? And thinking about it I am not sure if I can get to the inside of the liner real easily to attach the nut because I have an offset box. How far above the stove or offset box does it need to go? Or could I attach it to the offset box or is that too close?

Scott
 
I used this thermocouple
http://www.auberins.com/index.php?main_page=product_info&cPath=3&products_id=22

I was able to stick it between the stove and the flex adapter. for some reason my adaptor was alittle loose fitting. I then put some furnace cement around it to seal it. I don't think I really need to cement it but I did anyway. So the thermocouple is right at the stove opening...so when it reads 700 I don't get to worried. I like it cause I can tell what is going on.
 
Hi Waz,

I was looking to do something like this for my stove. I have a small stove in a fireplace opening with the chimney straight up. How high above the stove outlet should I put the thermocouple, do you think? Is the temperature readout capable of battery power or does it need a power supply?
 
DBoon said:
Hi Waz,

I was looking to do something like this for my stove. I have a small stove in a fireplace opening with the chimney straight up. How high above the stove outlet should I put the thermocouple, do you think? Is the temperature readout capable of battery power or does it need a power supply?
4

I put the thermocoupleer right at the stove adapter. So it sticks down into the stove. in other-words it is as low in the pipe as possible. not sure if that's the best place but it's where I'm trying it first. I was thinking about just poking a hole in the flex 12 inches up and then cementing it in place. It would be fun to have about three of these mounted at different places on the pipe and stove.

not sure about a battery. I have mine wired to an old 12v wall puge thingy.
 
I only monitor the stove top temp of my insert. I also have an infrared thermometer. You could correlate the stove top temp with flu temp, then put the surround back and use that. If you've burned long enough though, you know when to say either your stove is burning right or uh-oh better call the fire dept. Ive found that the newer EPA stoves pretty much burn themselves.
 
I'll see how Waz does with his - interested in the longevity. I could put mine 12" up, by that would be a much harder job.

I can pretty much monitor my stove with the stove top thermometer and the sounds it makes when warming up and cooling down, but I find that sometimes with the small stove, it would be helpful if I knew the flue temp as I was going through the 20 minute primary air adjustment. I have figured out what the ticking metal sounds tell me, and if it means I have shut down too fast and the stove is cooling down (and hence getting smoke out the flue), but I'm not sure my wife will get to this point. So I'm looking for something that would give my wife some more feedback.

The reason I try to avoid the smoke up the flue is that my neighbors house (a great neighbor, by the way) is literally 12' from mine, and I try to be as considerate with smoke as I can be during startups.

I'm not worried about creosote (the yearly flue cleaning showed that I pretty much have no issue here).
 
Ok thanks,

I am not sure that I want to poke a hole in the liner. I will have to get used to the stove and see if I even really need it.


Scott
 
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