Condar Temp Probe vs. The Thermocouple...

[pen]

Now that I think of it....

The probe reading 800 be experiencing much cooler temps (for the body of the unit itself) than the surface thermometer would.

A surface thermometer is actually living in the 800 degree environment if that's what it is reading. A probe thermometer is just interpreting 800 degrees.

I'd ask the guy about that and see what he says.

pen

 

[begreen]

I don't know for sure because we still have our trusty, 30 yr old glass dial, Sandhill. From the drawings, I would guess it is open on the surface magnetic units. But it appears to be enclosed in their probe units. Not sure about the BGE units either.

http://www.teltru.com/s-54-dual-magnet-thermometers.aspx
http://www.teltru.com/s-14-back-connected-small.aspx

BGE: http://www.teltru.com/p-272-big-gre...ent-thermometer-lt225r-2001000-degrees-f.aspx

 

[Todd]

Just to add to the Condor confusion- my experience was the opposite, instead of reading too high, my condor probe thermometer seldom got above 200-300F. I concluded it was due to my installation in a telescoping section of double wall connector pipe. Mine was installed in the "overlap" section of telescoping connector pipe there is actually 4 layers of sheet metal... leading to a extremely low reading. I've since moved to Tel-tru probe thermometers that have a reading range of 200-1000F. The coiled element is in the flow of flue gasses (inside the stainless probe tip). I've found these to be accurate and reliable as long as I don't exceed the 1000F limit. These have a quick reaction time, at least compared to what I saw with the condor probe. I use one of their replacements for the thermometer in a "big green egg", can be had for ~$20.
http://www.teltru.com/s-136-big-green-egg-grill-dome-kamado-replacement-thermometer.aspx

I wish that thermometer had a little higher range. I can see pegging it pretty easily if your not careful. What kind of temps do you generally see with it?

 

[3fordasho]

Just to add to the Condor confusion- my experience was the opposite, instead of reading too high, my condor probe thermometer seldom got above 200-300F. I concluded it was due to my installation in a telescoping section of double wall connector pipe. Mine was installed in the "overlap" section of telescoping connector pipe there is actually 4 layers of sheet metal... leading to a extremely low reading. I've since moved to Tel-tru probe thermometers that have a reading range of 200-1000F. The coiled element is in the flow of flue gasses (inside the stainless probe tip). I've found these to be accurate and reliable as long as I don't exceed the 1000F limit. These have a quick reaction time, at least compared to what I saw with the condor probe. I use one of their replacements for the thermometer in a "big green egg", can be had for ~$20.
http://www.teltru.com/s-136-big-green-egg-grill-dome-kamado-replacement-thermometer.aspx

I wish that thermometer had a little higher range. I can see pegging it pretty easily if your not careful. What kind of temps do you generally see with it?

Two fireviews with different flue set-ups and different temp probe locations due to the flue differences. On start up or reload (bypass open) I try to keep flue temps 500-600F. In cruise mode (load of wood/cat engaged) one stove will run 300-400F, the other runs 400-500F (flue temp, not stove top). I've only pegged the tel-tru once or twice when I forgot to shut down/watch the temps for a few/5 minutes and yes it can happen pretty easy but this is the time you can't let yourself get distracted or really even leave the stove room as I seen reloads go from 400 to 1000F+ in minutes. I have not pegged either one this season or last so I must be keeping a closer watch on things. One tel-tru did read low after the over temp incident. Most models can be recalibrated.

 

[begreen]

Dasho, what is the flue setup? Straight up or with elbows?

 

[Todd]

Just to add to the Condor confusion- my experience was the opposite, instead of reading too high, my condor probe thermometer seldom got above 200-300F. I concluded it was due to my installation in a telescoping section of double wall connector pipe. Mine was installed in the "overlap" section of telescoping connector pipe there is actually 4 layers of sheet metal... leading to a extremely low reading. I've since moved to Tel-tru probe thermometers that have a reading range of 200-1000F. The coiled element is in the flow of flue gasses (inside the stainless probe tip). I've found these to be accurate and reliable as long as I don't exceed the 1000F limit. These have a quick reaction time, at least compared to what I saw with the condor probe. I use one of their replacements for the thermometer in a "big green egg", can be had for ~$20.
http://www.teltru.com/s-136-big-green-egg-grill-dome-kamado-replacement-thermometer.aspx

I wish that thermometer had a little higher range. I can see pegging it pretty easily if your not careful. What kind of temps do you generally see with it?

Two fireviews with different flue set-ups and different temp probe locations due to the flue differences. On start up or reload (bypass open) I try to keep flue temps 500-600F. In cruise mode (load of wood/cat engaged) one stove will run 300-400F, the other runs 400-500F (flue temp, not stove top). I've only pegged the tel-tru once or twice when I forgot to shut down/watch the temps for a few/5 minutes and yes it can happen pretty easy but this is the time you can't let yourself get distracted or really even leave the stove room as I seen reloads go from 400 to 1000F+ in minutes. I have not pegged either one this season or last so I must be keeping a closer watch on things. One tel-tru did read low after the over temp incident. Most models can be recalibrated.

Wow, those temps seem low but if you figure flue temps are 50% higher than external single wall temps like Condar states it would be right in line with mine. I guess I might have to try another thermometer.

 

[3fordasho]

Dasho, what is the flue setup? Straight up or with elbows?

Both stoves use Supervent products as sold at Menards. All connector sections are double wall, the class A stuff is the double wall stainless with the insulation between.

Stove A (first installed) has a 90 elbow right on the back of the stove, an ~3' vertical run of double wall connector pipe(tel-tru is installed in this section, about 24-30" above the stove) to a 45 elbow, 1' straight to another 45 elbow that ceiling connects to 15' of class A.
Aproximately 4-5' of the class A is in attic space, the rest exposed. This is the stove that runs 300-400F flue temps at cruise.

Stove B has a horizontal run of adjustable length double wall connector pipe (~18") that goes straight out the back of the stove to a section of class A that comes thru a wall thimble. Next is a class A tee, then a vertical class A run of ~ 21' encased in an insulated chase with the top 3' exposed. In this set up my tel-tru flue themometer is in the horizontal adjustable length section of connector pipe, about 16" from the back of the stove. This one runs 400-500F flue temps at cruise.

 

[begreen]

Thanks. You are seeing higher temps in the flue with the same stove when the flue gases are slowed down by a 90deg turn. That seems logical and may help explain why my temps are so consistently reasonable with a straight-up pipe.