No, The low fire is great to start on then turn on high fire. same for shutting down, turn it down to low fire then off. this takes the ignition pressure off the pans. When the pans are cold on start up, they will instantly soot up, then when every thing comes up to temp you need enough heat to burn the soot off the pans. Soot is a good insulator. that is why you need the high stack temp. this is one of the great things about the 2 stage. the 601 burner with a big nozzle can lift the pans a little on ignition.
Blaisdell's Maple Farm
started on a 2x2 pan in 2000 and now
custom built oil fired 4x12 arch by me
Thor pans Desinged by Thad Blaisdell
4600 taps on a drop flue 8-4 split