[CharlesYuhnke]

Have noticed that the diesel aqua hot roof exhaust smokes pretty good when I first turn it on.  Does so for around 5 minutes then ultimately clears up.    Any ideas??????

[Trainer]

Charles,

The burner may be asking for a good Annual Service. This service cures a multitude of ills.

[bikestuff]

Is the smoke black or white? If white, could it be condensation from moisture in the exhaust pipe?