I like it. Could be the answer to your problem; worth checking out.titleist1 wrote:regarding the overfire air...
Before you start drilling and tapping holes in your stove, do you have the glass on the front of your Harman? If so, do the panes of glass have some play in them to allow air to enter the firebox? They should not have the rope gasket all the way around them and they should not be clogged with ash. If they do maybe that is the reason for the lack of overfire air.
Richard