Setting up a Jetmaster and adjusting the baffle
Jetmasters are a very popular appliance in this area, a compromise between the joy of an open fire and the efficiency of a stove, ideally suited for re sizing over large fire places or for the more contemporary look of an inset appliance.
We recommend that flues should be swept at least twice a year, during the heating season. More frequent sweeping may be necessary where fires are burned throughout the year or where low grade wood or bituminous coal are used as fuels. Fires are provided with removable throat restrictors to facilitate chimney sweeping and for the removal of soot from the top of the unit.
Its very important that only dry, well seasoned wood is used, as like most efficient appliances with wet wood they are very efficient tar makers.This image is of a Jetmaster flue that has not been swept for some time, this resulted in a chimney fire, unfortunately the flue is no longer gas tight and will have to be reamed out and relined.
There is an adjustable baffle on the Jetmaster allowing you to adjust the draw, in practice unless you have the chimney swept every 3 months as per the manufacturers instructions or you have a very tall chimney or your house is exposed to high winds, its best to leave this control in the fully open position when its lit lest you tar up the chimney leading to a chimney fire.
If you must reduce the draw then no more than 40% e.g. just past the open tag.
Leave a one inch thick layer of ash in the tray, wood is best burnt on a layer of ash, the tray is prone to buckling if this is not done.
A common problem we encounter with jetmasters is them walking out of their inset.
This is generally the result of lack of effective sweeping as soot and tar builds up behind the Jetmaster forcing it out into the room.
Jetmasters
Wood – Sweep every three months in use
Coal – Sweep every three months in use
Smokeless – Sweep every year