Question for you gasser guys..........

[heaterman]

If you are running a gasser and have a barometric draft regulator in the flue, what are your flue temps measuring before and after the barometric?
I'm wondering what the actual flue gas temp is when it hits the chimney?

 

[maple1]

Mine runs between 200-250c (internal probe) a foot outside the boiler, 2 feet before the damper. I've never measure it after the damper. I've only got one probe so am not going to the trouble of moving that - if I think of it I'll do before & after with my magnetic one next time I burn. That thing is generally out to lunch, but if it's consistently out to lunch it might give some idea.

(That likely didn't help much...)