To look proportionate a chimney should extend from about 2” to 4” above the top the shade.
Measurements are given as bottom fitter x height.
Chimneys fit into the chimney cup on the lamp. Do not force the chimney. If the fit is very tight, remove chimney, push the fingers of the cup out to loosen, then insert chimney. If it is too loose, reverse the process. Only a very small amount of pressure and movement of the fingers should be required.
Please click on each image for more information and detailed measurements.