We just installed a stainless steel liner in an outside chimney for a wood stove that is in our basement. I used an infrared temperature gauge to check the stove temps and the stove was running around 550 degrees. The pipe was running at 300+ degrees. After opening the damper and airvent to add wood, the temperature at the stove went up to 800 degrees and at the T and up to the damper was 750 degrees. Is this stove too hot? And mainly, will it damage the stainless steel liner? I got on the roof and looked down the liner and it seems to have changed shape somewhat since we installed it. It is a flexible, double ply, smooth wall liner. Everything is installed correctly. The stove is homemade (we've owned it over 20 years) with a 6" output, going to an elbow to pipe to elbow to pipe to thimble to liner.
Temperature question related to stainless steel liners
- Thread starter scuffletown
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webbie
Seasoned Moderator
These liners are tested for operation at double those temperatures - and for bursts up to 2000 plus degrees....
"Designed for normal, continuous operation at 1000° F flue gas
temperatures, DuraTech (example) is subjected to rigorous and stringent HT
requirements of the UL standard, including one hour at 1400° F,
plus three ten minute chimney fire tests at 2100° F. "
"Designed for normal, continuous operation at 1000° F flue gas
temperatures, DuraTech (example) is subjected to rigorous and stringent HT
requirements of the UL standard, including one hour at 1400° F,
plus three ten minute chimney fire tests at 2100° F. "
Nick Mystic
Minister of Fire
The fact that the liner seemed to have changed shape must mean something, right? If you could post some photos you will probably get more accurate feedback. I recall someone posting a few months ago with a double wall liner that appeared to have melted on him and started to come apart. Like Stihly Dan said, adding wood to a stove burning at 550 F is usually not a good idea. There are several threads about over firing a stove from such practices. Good luck with your situation.
Whenever I wake up at night I always check wood stove. It was 1:30 am and 8 degrees when I went down to check it.. I had room for some wood so I added it. I was very surprised at the temperatures. Did not know that the stove burned that hot. This stove heats a 1400 square foot basement and when that gets warm it heats upstairs. We have a heat pump so when it gets cold we use wood stove and it's also backup for power outage.
So I should be worried about what looks to be change in shape. I will try to get pic.
Liner looks great. Don't add wood on a hot fire. It's asking for the stove to take off like you have been seeing. Let the fire burn down before reloading.
Berner
Feeling the Heat
I find the IR gun is a pretty difficult way to get a consistent pipe temperature. I have a similar setup and if I move the gun a half inch it can change the reading by a lot. Did you find this the case with yours as well?
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Yes I did find that the temperature was up and down as I moved the ir gun around. One thing I have not said and that is I did not leave it that hot. After I checked the temperature I turned the draft and damper back down which helped in reducing the temps. I learned a good lesson by joining this forum. Thanks
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