I could be that:
1) the setting of the air to the burner is set too high. Please look the manual for more information.
2) there somewhere in the installation of the fuel pipes/hoses is a leak, so false air can enter.
If there is white smoke coming from the chimney, the burning is not correct.
I could be that:
1) the setting of the air to the burner is set too high. Please look the manual for more information.
2) there somewhere in the installation of the fuel pipes/hoses is a leak, so false air can enter.