I bought a Whitfield Advantage "Plus" Insert, dated around 1990, used for $250 from someone else who also bought it used. The unit mostly works well.
However, I am having trouble with it burning a bit rich - the ash produced is dark grey and it seems it's producing too much ash. (It needs cleaned out after 3 or 4 bags go through it.) Even on the highest "5" setting, it still is producing quite a bit of ash. On the lowest settings "1" to "3" there can be a bit of visible smoke from the exhaust. On the "5" setting the exhaust looks clean.
I am also getting a bit of black build-up (creosote I think) on the glass.
I am guessing the air intake is dirty/needs cleaned out. How do I do that? Any manuals or sticker labels on this thing were gone long ago.
Other than that the unit works well and is capable of heating my 880 sq ft house, goes through about a bag a day when the weather is 30 F or so. The house is a bit drafty in spots.
However, I am having trouble with it burning a bit rich - the ash produced is dark grey and it seems it's producing too much ash. (It needs cleaned out after 3 or 4 bags go through it.) Even on the highest "5" setting, it still is producing quite a bit of ash. On the lowest settings "1" to "3" there can be a bit of visible smoke from the exhaust. On the "5" setting the exhaust looks clean.
I am also getting a bit of black build-up (creosote I think) on the glass.
I am guessing the air intake is dirty/needs cleaned out. How do I do that? Any manuals or sticker labels on this thing were gone long ago.
Other than that the unit works well and is capable of heating my 880 sq ft house, goes through about a bag a day when the weather is 30 F or so. The house is a bit drafty in spots.