Well its been about 8 years and my old Englander 8-3500 wood and coal furnace is still serving me well. I would like to add some digital Type K Thermocouple probe Sensors and wanted to know if I can install one in the flue and then one in the jacket or next to the HW Thermostat ? I have added a picture of my flue /stack ( does not look as shiny as that any more) and a example thermocouple but wanted to see the spots that I should be checking for temperatures, I would love to get a warming if my flue was getting too hot and then to also monitor the temperature of the outbound air thats going in to my duct work.
![Thermocouple probe Sensors to measure furnace temps Thermocouple probe Sensors to measure furnace temps](/talk/proxy.php?image=http%3A%2F%2Fs13.postimage.org%2F5p2lpwp87%2FIMAG0523.jpg&hash=122e302a9a9deda7d90ab2c020b49aca)
![Thermocouple probe Sensors to measure furnace temps Thermocouple probe Sensors to measure furnace temps](/talk/proxy.php?image=https%3A%2F%2Fi.ebayimg.com%2Fimages%2Fg%2F9YEAAOSwzRlZifno%2Fs-l1600.png&hash=7d3ec9cff7a2241c6e078f7aa13128b2)