Flue temperature query Froling SP dual

[frolingdual]

A long shot I know but does anyone know what temperature my flue gas should be for

a) Pellets

b) logs

?

It seems to have the same setpoint for either which doesn't seem right.

 

[biothermic]

I have a P4 20 and FHG 20 installed at my house. Although it's not an SP Dual the flue gas temp is consistent with both boilers (~160 C). I however notice more variability in the flue gas temp of the firewood boiler. The pellet boiler's flue gas temp is very stable.

 

[TCaldwell]

Not sure why you would think they should be different, logs and pellets both being the same fuel, just in different form. I suspect if the o2 set point is the same the resultant flue gas temp would be also