Flames too blue/yellow or causing soot?
- Check that the air intake guide is fitted correctly.
- Check that the restriction slider is fitted correctly.
- Check the throttle ring setting.
- Check that the air intake guide is fitted correctly.
- Check that the restrictor slide is fitted correctly.
- Check whether the vertical length of the flue pipe is too long.
- Check the gasket on the glass pane
- Check the position of the glass panes (should be minimal gaps) on 2- and 3-sided units.
! PowerVent®? Check whether the pressure adjustment unit is correctly set or whether the pressure measuring pipes are leaking (see manual).