Air/draft issue & downdraft/smoke from cleanout

[emorems0]

Progress! It should run a lot better now.
The thermometer looks like a stove top model, based on the ranges. It appears to be reading at half-way between 300 and 600º or 450º. The temp inside of the flue is about twice that or 900º which is too hot. It should be more like 250- 300º when the air is closed down.

I'm not sure I follow, there is a different type of thermometer for a stovepipe? This is what my stove manual says about monitoring temps: "We strongly recommend that you install a magnetic thermometer on your smoke exhaust pipe approximately 18" above the stove. This thermometer will indicate the temperature of your gas exhaust fumes within the smoke exhaust system. The ideal temperature for these gases is somewhere between275o F and 500o F. Below these temperatures, the build-up of creosote is promoted. Above 500degrees, heat is wasted since a too large quantity is lost into the atmosphere."

 

[EbS-P]

I'm not sure I follow, there is a different type of thermometer for a stovepipe? This is what my stove manual says about monitoring temps: "We strongly recommend that you install a magnetic thermometer on your smoke exhaust pipe approximately 18" above the stove. This thermometer will indicate the temperature of your gas exhaust fumes within the smoke exhaust system. The ideal temperature for these gases is somewhere between275o F and 500o F. Below these temperatures, the build-up of creosote is promoted. Above 500degrees, heat is wasted since a too large quantity is lost into the atmosphere."

There are magnetic one made for stove tops. Magnetic ones made for single wall stove pipe. And there are probe type that you drill a hole and insert into flue gas stream.

 

[emorems0]

There are magnetic one made for stove tops. Magnetic ones made for single wall stove pipe. And there are probe type that you drill a hole and insert into flue gas stream.

This is the thermometer we have, the description says it is for stoves and single wall pipes (which is what our stovepipe is). Is this not what we need?

https://www.tractorsupply.com/tsc/product/rutland-stove-thermometer-burn-indicator-3198420?store=748&cid=Google-Shopping-Sustain&utm_medium=Google&utm_source=Shopping&utm_content=Sustain&gad_source=1&gclid=Cj0KCQiAsOq6BhDuARIsAGQ4-zhSJlBDMW1ABy7St_g3_ROVWb4vKrDeBTk1vhfu1PJTw3zFgHXErC4aAhMJEALw_wcB